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Finding the Fourth Proportional to 19,538.68, 29,304.80 and 5,499.68

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Solution

The fourth proportional to 19,538.68, 29,304.80 and 5,499.68 is: 8,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.68 : 29,304.80 = 5,499.68 : x
  2. Step 2: Convert to fraction form
    19,538.68/29,304.80 = 5,499.68/x
  3. Step 3: Cross multiply
    19,538.68x = 29,304.80 × 5,499.68
  4. Step 4: Simplify right side
    19,538.68x = 161,167,022.46
  5. Step 5: Solve for x
    x = 161,167,022.46/19,538.68
  6. Step 6: Final answer
    x = 8,248.61

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Double scale
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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.