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Finding the Fourth Proportional to 39,865,535.40, 55,962,915 and 39,865,535.40

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Solution

The fourth proportional to 39,865,535.40, 55,962,915 and 39,865,535.40 is: 55,962,915

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865,535.40 : 55,962,915 = 39,865,535.40 : x
  2. Step 2: Convert to fraction form
    39,865,535.40/55,962,915 = 39,865,535.40/x
  3. Step 3: Cross multiply
    39,865,535.40x = 55,962,915 × 39,865,535.40
  4. Step 4: Simplify right side
    39,865,535.40x = 2,230,991,569,019,691
  5. Step 5: Solve for x
    x = 2,230,991,569,019,691/39,865,535.40
  6. Step 6: Final answer
    x = 55,962,915

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.