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Finding the Fourth Proportional to 39,306.60, 58,917.76 and 19,542.60

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Solution

The fourth proportional to 39,306.60, 58,917.76 and 19,542.60 is: 29,292.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,306.60 : 58,917.76 = 19,542.60 : x
  2. Step 2: Convert to fraction form
    39,306.60/58,917.76 = 19,542.60/x
  3. Step 3: Cross multiply
    39,306.60x = 58,917.76 × 19,542.60
  4. Step 4: Simplify right side
    39,306.60x = 1,151,406,216.58
  5. Step 5: Solve for x
    x = 1,151,406,216.58/39,306.60
  6. Step 6: Final answer
    x = 29,292.95

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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.