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Finding the Fourth Proportional to 32,689.95, 48,988.14 and 18,620.92

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Solution

The fourth proportional to 32,689.95, 48,988.14 and 18,620.92 is: 27,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,689.95 : 48,988.14 = 18,620.92 : x
  2. Step 2: Convert to fraction form
    32,689.95/48,988.14 = 18,620.92/x
  3. Step 3: Cross multiply
    32,689.95x = 48,988.14 × 18,620.92
  4. Step 4: Simplify right side
    32,689.95x = 912,204,227.30
  5. Step 5: Solve for x
    x = 912,204,227.30/32,689.95
  6. Step 6: Final answer
    x = 27,904.73

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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.