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Finding the Fourth Proportional to 15,791.58, 23,701.71 and 8,402.22

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Solution

The fourth proportional to 15,791.58, 23,701.71 and 8,402.22 is: 12,610.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.58 : 23,701.71 = 8,402.22 : x
  2. Step 2: Convert to fraction form
    15,791.58/23,701.71 = 8,402.22/x
  3. Step 3: Cross multiply
    15,791.58x = 23,701.71 × 8,402.22
  4. Step 4: Simplify right side
    15,791.58x = 199,146,981.80
  5. Step 5: Solve for x
    x = 199,146,981.80/15,791.58
  6. Step 6: Final answer
    x = 12,610.96

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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.