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Finding the Fourth Proportional to 42,752.65, 64,073.05 and 22,988.65

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Solution

The fourth proportional to 42,752.65, 64,073.05 and 22,988.65 is: 34,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752.65 : 64,073.05 = 22,988.65 : x
  2. Step 2: Convert to fraction form
    42,752.65/64,073.05 = 22,988.65/x
  3. Step 3: Cross multiply
    42,752.65x = 64,073.05 × 22,988.65
  4. Step 4: Simplify right side
    42,752.65x = 1,472,952,920.88
  5. Step 5: Solve for x
    x = 1,472,952,920.88/42,752.65
  6. Step 6: Final answer
    x = 34,452.90

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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.