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Finding the Fourth Proportional to 15,679.10, 23,522.44 and 9,019.86

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Solution

The fourth proportional to 15,679.10, 23,522.44 and 9,019.86 is: 13,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.10 : 23,522.44 = 9,019.86 : x
  2. Step 2: Convert to fraction form
    15,679.10/23,522.44 = 9,019.86/x
  3. Step 3: Cross multiply
    15,679.10x = 23,522.44 × 9,019.86
  4. Step 4: Simplify right side
    15,679.10x = 212,169,115.66
  5. Step 5: Solve for x
    x = 212,169,115.66/15,679.10
  6. Step 6: Final answer
    x = 13,531.97

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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.