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Finding the Fourth Proportional to 32,690.79, 45,114.17 and 18,545.76

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Solution

The fourth proportional to 32,690.79, 45,114.17 and 18,545.76 is: 25,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,690.79 : 45,114.17 = 18,545.76 : x
  2. Step 2: Convert to fraction form
    32,690.79/45,114.17 = 18,545.76/x
  3. Step 3: Cross multiply
    32,690.79x = 45,114.17 × 18,545.76
  4. Step 4: Simplify right side
    32,690.79x = 836,676,476.69
  5. Step 5: Solve for x
    x = 836,676,476.69/32,690.79
  6. Step 6: Final answer
    x = 25,593.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.