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Finding the Fourth Proportional to 15,288.61, 22,976.65 and 7,502.89

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Solution

The fourth proportional to 15,288.61, 22,976.65 and 7,502.89 is: 11,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.61 : 22,976.65 = 7,502.89 : x
  2. Step 2: Convert to fraction form
    15,288.61/22,976.65 = 7,502.89/x
  3. Step 3: Cross multiply
    15,288.61x = 22,976.65 × 7,502.89
  4. Step 4: Simplify right side
    15,288.61x = 172,391,277.52
  5. Step 5: Solve for x
    x = 172,391,277.52/15,288.61
  6. Step 6: Final answer
    x = 11,275.80

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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.