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Finding the Fourth Proportional to 28,392.52, 42,572.04 and 11,733.88

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Solution

The fourth proportional to 28,392.52, 42,572.04 and 11,733.88 is: 17,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.52 : 42,572.04 = 11,733.88 : x
  2. Step 2: Convert to fraction form
    28,392.52/42,572.04 = 11,733.88/x
  3. Step 3: Cross multiply
    28,392.52x = 42,572.04 × 11,733.88
  4. Step 4: Simplify right side
    28,392.52x = 499,535,208.72
  5. Step 5: Solve for x
    x = 499,535,208.72/28,392.52
  6. Step 6: Final answer
    x = 17,593.90

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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.