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Finding the Fourth Proportional to 15,867.60, 23,791.83 and 8,377.12

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Solution

The fourth proportional to 15,867.60, 23,791.83 and 8,377.12 is: 12,560.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.60 : 23,791.83 = 8,377.12 : x
  2. Step 2: Convert to fraction form
    15,867.60/23,791.83 = 8,377.12/x
  3. Step 3: Cross multiply
    15,867.60x = 23,791.83 × 8,377.12
  4. Step 4: Simplify right side
    15,867.60x = 199,307,013.26
  5. Step 5: Solve for x
    x = 199,307,013.26/15,867.60
  6. Step 6: Final answer
    x = 12,560.63

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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.