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Finding the Fourth Proportional to 57,687.16, 86,526.63 and 15,569.64

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Solution

The fourth proportional to 57,687.16, 86,526.63 and 15,569.64 is: 23,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,687.16 : 86,526.63 = 15,569.64 : x
  2. Step 2: Convert to fraction form
    57,687.16/86,526.63 = 15,569.64/x
  3. Step 3: Cross multiply
    57,687.16x = 86,526.63 × 15,569.64
  4. Step 4: Simplify right side
    57,687.16x = 1,347,188,423.52
  5. Step 5: Solve for x
    x = 1,347,188,423.52/57,687.16
  6. Step 6: Final answer
    x = 23,353.35

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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.