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Finding the Fourth Proportional to 17,951.16, 26,938.26 and 8,712.12

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Solution

The fourth proportional to 17,951.16, 26,938.26 and 8,712.12 is: 13,073.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.16 : 26,938.26 = 8,712.12 : x
  2. Step 2: Convert to fraction form
    17,951.16/26,938.26 = 8,712.12/x
  3. Step 3: Cross multiply
    17,951.16x = 26,938.26 × 8,712.12
  4. Step 4: Simplify right side
    17,951.16x = 234,689,353.71
  5. Step 5: Solve for x
    x = 234,689,353.71/17,951.16
  6. Step 6: Final answer
    x = 13,073.77

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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.