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Finding the Fourth Proportional to 57,531.68, 79,390.76 and 32,382.80

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Solution

The fourth proportional to 57,531.68, 79,390.76 and 32,382.80 is: 44,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,531.68 : 79,390.76 = 32,382.80 : x
  2. Step 2: Convert to fraction form
    57,531.68/79,390.76 = 32,382.80/x
  3. Step 3: Cross multiply
    57,531.68x = 79,390.76 × 32,382.80
  4. Step 4: Simplify right side
    57,531.68x = 2,570,895,102.93
  5. Step 5: Solve for x
    x = 2,570,895,102.93/57,531.68
  6. Step 6: Final answer
    x = 44,686.60

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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.