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Finding the Fourth Proportional to 11,508.08, 15,865.08 and 9,732.56

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Solution

The fourth proportional to 11,508.08, 15,865.08 and 9,732.56 is: 13,417.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.08 : 15,865.08 = 9,732.56 : x
  2. Step 2: Convert to fraction form
    11,508.08/15,865.08 = 9,732.56/x
  3. Step 3: Cross multiply
    11,508.08x = 15,865.08 × 9,732.56
  4. Step 4: Simplify right side
    11,508.08x = 154,407,843.00
  5. Step 5: Solve for x
    x = 154,407,843.00/11,508.08
  6. Step 6: Final answer
    x = 13,417.34

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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.