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Finding the Fourth Proportional to 14,042.81, 21,064.21 and 9,646.94

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Solution

The fourth proportional to 14,042.81, 21,064.21 and 9,646.94 is: 14,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.81 : 21,064.21 = 9,646.94 : x
  2. Step 2: Convert to fraction form
    14,042.81/21,064.21 = 9,646.94/x
  3. Step 3: Cross multiply
    14,042.81x = 21,064.21 × 9,646.94
  4. Step 4: Simplify right side
    14,042.81x = 203,205,040.58
  5. Step 5: Solve for x
    x = 203,205,040.58/14,042.81
  6. Step 6: Final answer
    x = 14,470.40

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Half scale
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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.