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Finding the Fourth Proportional to 32,890,507.92, 45,388,351.26 and 18,205,859.16

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Solution

The fourth proportional to 32,890,507.92, 45,388,351.26 and 18,205,859.16 is: 25,123,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,890,507.92 : 45,388,351.26 = 18,205,859.16 : x
  2. Step 2: Convert to fraction form
    32,890,507.92/45,388,351.26 = 18,205,859.16/x
  3. Step 3: Cross multiply
    32,890,507.92x = 45,388,351.26 × 18,205,859.16
  4. Step 4: Simplify right side
    32,890,507.92x = 826,333,930,544,168.50
  5. Step 5: Solve for x
    x = 826,333,930,544,168.50/32,890,507.92
  6. Step 6: Final answer
    x = 25,123,781.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.