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Finding the Fourth Proportional to 39,865,486.90, 55,962,847.10 and 39,865,486.90

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Solution

The fourth proportional to 39,865,486.90, 55,962,847.10 and 39,865,486.90 is: 55,962,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865,486.90 : 55,962,847.10 = 39,865,486.90 : x
  2. Step 2: Convert to fraction form
    39,865,486.90/55,962,847.10 = 39,865,486.90/x
  3. Step 3: Cross multiply
    39,865,486.90x = 55,962,847.10 × 39,865,486.90
  4. Step 4: Simplify right side
    39,865,486.90x = 2,230,986,147,951,753
  5. Step 5: Solve for x
    x = 2,230,986,147,951,753/39,865,486.90
  6. Step 6: Final answer
    x = 55,962,847.10

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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.