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Finding the Fourth Proportional to 11,486.52, 15,868.68 and 7,517.04

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Solution

The fourth proportional to 11,486.52, 15,868.68 and 7,517.04 is: 10,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.52 : 15,868.68 = 7,517.04 : x
  2. Step 2: Convert to fraction form
    11,486.52/15,868.68 = 7,517.04/x
  3. Step 3: Cross multiply
    11,486.52x = 15,868.68 × 7,517.04
  4. Step 4: Simplify right side
    11,486.52x = 119,285,502.31
  5. Step 5: Solve for x
    x = 119,285,502.31/11,486.52
  6. Step 6: Final answer
    x = 10,384.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.