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Finding the Fourth Proportional to 17,162.60, 25,700.13 and 8,374.50

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Solution

The fourth proportional to 17,162.60, 25,700.13 and 8,374.50 is: 12,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,162.60 : 25,700.13 = 8,374.50 : x
  2. Step 2: Convert to fraction form
    17,162.60/25,700.13 = 8,374.50/x
  3. Step 3: Cross multiply
    17,162.60x = 25,700.13 × 8,374.50
  4. Step 4: Simplify right side
    17,162.60x = 215,225,738.69
  5. Step 5: Solve for x
    x = 215,225,738.69/17,162.60
  6. Step 6: Final answer
    x = 12,540.40

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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.