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Finding the Fourth Proportional to 13,248.74, 18,250.62 and 11,354.24

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Solution

The fourth proportional to 13,248.74, 18,250.62 and 11,354.24 is: 15,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.74 : 18,250.62 = 11,354.24 : x
  2. Step 2: Convert to fraction form
    13,248.74/18,250.62 = 11,354.24/x
  3. Step 3: Cross multiply
    13,248.74x = 18,250.62 × 11,354.24
  4. Step 4: Simplify right side
    13,248.74x = 207,221,919.63
  5. Step 5: Solve for x
    x = 207,221,919.63/13,248.74
  6. Step 6: Final answer
    x = 15,640.88

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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.