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Finding the Fourth Proportional to 72,299.52, 108,426.24 and 23,040

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Solution

The fourth proportional to 72,299.52, 108,426.24 and 23,040 is: 34,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299.52 : 108,426.24 = 23,040 : x
  2. Step 2: Convert to fraction form
    72,299.52/108,426.24 = 23,040/x
  3. Step 3: Cross multiply
    72,299.52x = 108,426.24 × 23,040
  4. Step 4: Simplify right side
    72,299.52x = 2,498,140,569.60
  5. Step 5: Solve for x
    x = 2,498,140,569.60/72,299.52
  6. Step 6: Final answer
    x = 34,552.66

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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.