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Finding the Fourth Proportional to 15,171.16, 22,759.78 and 6,287.08

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Solution

The fourth proportional to 15,171.16, 22,759.78 and 6,287.08 is: 9,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.16 : 22,759.78 = 6,287.08 : x
  2. Step 2: Convert to fraction form
    15,171.16/22,759.78 = 6,287.08/x
  3. Step 3: Cross multiply
    15,171.16x = 22,759.78 × 6,287.08
  4. Step 4: Simplify right side
    15,171.16x = 143,092,557.64
  5. Step 5: Solve for x
    x = 143,092,557.64/15,171.16
  6. Step 6: Final answer
    x = 9,431.88

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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.