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Finding the Fourth Proportional to 57,572.89, 79,456.40 and 32,083.40

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Solution

The fourth proportional to 57,572.89, 79,456.40 and 32,083.40 is: 44,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,572.89 : 79,456.40 = 32,083.40 : x
  2. Step 2: Convert to fraction form
    57,572.89/79,456.40 = 32,083.40/x
  3. Step 3: Cross multiply
    57,572.89x = 79,456.40 × 32,083.40
  4. Step 4: Simplify right side
    57,572.89x = 2,549,231,463.76
  5. Step 5: Solve for x
    x = 2,549,231,463.76/57,572.89
  6. Step 6: Final answer
    x = 44,278.33

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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.