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Finding the Fourth Proportional to 9,658,937.80, 14,488,406.70 and 7,249,738.60

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Solution

The fourth proportional to 9,658,937.80, 14,488,406.70 and 7,249,738.60 is: 10,874,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658,937.80 : 14,488,406.70 = 7,249,738.60 : x
  2. Step 2: Convert to fraction form
    9,658,937.80/14,488,406.70 = 7,249,738.60/x
  3. Step 3: Cross multiply
    9,658,937.80x = 14,488,406.70 × 7,249,738.60
  4. Step 4: Simplify right side
    9,658,937.80x = 105,037,161,305,488.61
  5. Step 5: Solve for x
    x = 105,037,161,305,488.61/9,658,937.80
  6. Step 6: Final answer
    x = 10,874,607.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.