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Finding the Fourth Proportional to 72,569.52, 108,831.24 and 23,310

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Solution

The fourth proportional to 72,569.52, 108,831.24 and 23,310 is: 34,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,569.52 : 108,831.24 = 23,310 : x
  2. Step 2: Convert to fraction form
    72,569.52/108,831.24 = 23,310/x
  3. Step 3: Cross multiply
    72,569.52x = 108,831.24 × 23,310
  4. Step 4: Simplify right side
    72,569.52x = 2,536,856,204.40
  5. Step 5: Solve for x
    x = 2,536,856,204.40/72,569.52
  6. Step 6: Final answer
    x = 34,957.60

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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.