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Finding the Fourth Proportional to 36,689.73, 55,071.05 and 16,972.71

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Solution

The fourth proportional to 36,689.73, 55,071.05 and 16,972.71 is: 25,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.73 : 55,071.05 = 16,972.71 : x
  2. Step 2: Convert to fraction form
    36,689.73/55,071.05 = 16,972.71/x
  3. Step 3: Cross multiply
    36,689.73x = 55,071.05 × 16,972.71
  4. Step 4: Simplify right side
    36,689.73x = 934,704,961.05
  5. Step 5: Solve for x
    x = 934,704,961.05/36,689.73
  6. Step 6: Final answer
    x = 25,475.93

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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.