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Finding the Fourth Proportional to 67,066.49, 100,685.09 and 43,472.76

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Solution

The fourth proportional to 67,066.49, 100,685.09 and 43,472.76 is: 65,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,066.49 : 100,685.09 = 43,472.76 : x
  2. Step 2: Convert to fraction form
    67,066.49/100,685.09 = 43,472.76/x
  3. Step 3: Cross multiply
    67,066.49x = 100,685.09 × 43,472.76
  4. Step 4: Simplify right side
    67,066.49x = 4,377,059,283.90
  5. Step 5: Solve for x
    x = 4,377,059,283.90/67,066.49
  6. Step 6: Final answer
    x = 65,264.48

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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.