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Finding the Fourth Proportional to 18,687,130.05, 26,098,209.15 and 18,687,130.05

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Solution

The fourth proportional to 18,687,130.05, 26,098,209.15 and 18,687,130.05 is: 26,098,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,130.05 : 26,098,209.15 = 18,687,130.05 : x
  2. Step 2: Convert to fraction form
    18,687,130.05/26,098,209.15 = 18,687,130.05/x
  3. Step 3: Cross multiply
    18,687,130.05x = 26,098,209.15 × 18,687,130.05
  4. Step 4: Simplify right side
    18,687,130.05x = 487,700,628,458,149.94
  5. Step 5: Solve for x
    x = 487,700,628,458,149.94/18,687,130.05
  6. Step 6: Final answer
    x = 26,098,209.15

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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.