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Finding the Fourth Proportional to 57,869.60, 86,833.20 and 22,810.40

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Solution

The fourth proportional to 57,869.60, 86,833.20 and 22,810.40 is: 34,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.60 : 86,833.20 = 22,810.40 : x
  2. Step 2: Convert to fraction form
    57,869.60/86,833.20 = 22,810.40/x
  3. Step 3: Cross multiply
    57,869.60x = 86,833.20 × 22,810.40
  4. Step 4: Simplify right side
    57,869.60x = 1,980,700,025.28
  5. Step 5: Solve for x
    x = 1,980,700,025.28/57,869.60
  6. Step 6: Final answer
    x = 34,226.95

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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.