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Finding the Fourth Proportional to 45,543.52, 67,862.52 and 40,574.98

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Solution

The fourth proportional to 45,543.52, 67,862.52 and 40,574.98 is: 60,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.52 : 67,862.52 = 40,574.98 : x
  2. Step 2: Convert to fraction form
    45,543.52/67,862.52 = 40,574.98/x
  3. Step 3: Cross multiply
    45,543.52x = 67,862.52 × 40,574.98
  4. Step 4: Simplify right side
    45,543.52x = 2,753,520,391.75
  5. Step 5: Solve for x
    x = 2,753,520,391.75/45,543.52
  6. Step 6: Final answer
    x = 60,459.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.