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Finding the Fourth Proportional to 9,775.40, 14,630.70 and 9,775.40

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Solution

The fourth proportional to 9,775.40, 14,630.70 and 9,775.40 is: 14,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.40 : 14,630.70 = 9,775.40 : x
  2. Step 2: Convert to fraction form
    9,775.40/14,630.70 = 9,775.40/x
  3. Step 3: Cross multiply
    9,775.40x = 14,630.70 × 9,775.40
  4. Step 4: Simplify right side
    9,775.40x = 143,020,944.78
  5. Step 5: Solve for x
    x = 143,020,944.78/9,775.40
  6. Step 6: Final answer
    x = 14,630.70

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Double scale
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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.