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Finding the Fourth Proportional to 57,957.60, 86,965.20 and 22,898.40

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Solution

The fourth proportional to 57,957.60, 86,965.20 and 22,898.40 is: 34,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,957.60 : 86,965.20 = 22,898.40 : x
  2. Step 2: Convert to fraction form
    57,957.60/86,965.20 = 22,898.40/x
  3. Step 3: Cross multiply
    57,957.60x = 86,965.20 × 22,898.40
  4. Step 4: Simplify right side
    57,957.60x = 1,991,363,935.68
  5. Step 5: Solve for x
    x = 1,991,363,935.68/57,957.60
  6. Step 6: Final answer
    x = 34,358.98

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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.