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Finding the Fourth Proportional to 57,466.48, 86,200.80 and 15,913.12

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Solution

The fourth proportional to 57,466.48, 86,200.80 and 15,913.12 is: 23,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,466.48 : 86,200.80 = 15,913.12 : x
  2. Step 2: Convert to fraction form
    57,466.48/86,200.80 = 15,913.12/x
  3. Step 3: Cross multiply
    57,466.48x = 86,200.80 × 15,913.12
  4. Step 4: Simplify right side
    57,466.48x = 1,371,723,674.50
  5. Step 5: Solve for x
    x = 1,371,723,674.50/57,466.48
  6. Step 6: Final answer
    x = 23,869.98

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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.