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Finding the Fourth Proportional to 57,742.88, 79,681.60 and 32,248.32

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Solution

The fourth proportional to 57,742.88, 79,681.60 and 32,248.32 is: 44,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.88 : 79,681.60 = 32,248.32 : x
  2. Step 2: Convert to fraction form
    57,742.88/79,681.60 = 32,248.32/x
  3. Step 3: Cross multiply
    57,742.88x = 79,681.60 × 32,248.32
  4. Step 4: Simplify right side
    57,742.88x = 2,569,597,734.91
  5. Step 5: Solve for x
    x = 2,569,597,734.91/57,742.88
  6. Step 6: Final answer
    x = 44,500.69

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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.