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Finding the Fourth Proportional to 18,396.32, 27,598.80 and 5,248.88

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Solution

The fourth proportional to 18,396.32, 27,598.80 and 5,248.88 is: 7,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.32 : 27,598.80 = 5,248.88 : x
  2. Step 2: Convert to fraction form
    18,396.32/27,598.80 = 5,248.88/x
  3. Step 3: Cross multiply
    18,396.32x = 27,598.80 × 5,248.88
  4. Step 4: Simplify right side
    18,396.32x = 144,862,789.34
  5. Step 5: Solve for x
    x = 144,862,789.34/18,396.32
  6. Step 6: Final answer
    x = 7,874.55

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1.5x scale

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.