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Finding the Fourth Proportional to 57,335.99, 79,125.67 and 31,842.78

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Solution

The fourth proportional to 57,335.99, 79,125.67 and 31,842.78 is: 43,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,335.99 : 79,125.67 = 31,842.78 : x
  2. Step 2: Convert to fraction form
    57,335.99/79,125.67 = 31,842.78/x
  3. Step 3: Cross multiply
    57,335.99x = 79,125.67 × 31,842.78
  4. Step 4: Simplify right side
    57,335.99x = 2,519,581,302.16
  5. Step 5: Solve for x
    x = 2,519,581,302.16/57,335.99
  6. Step 6: Final answer
    x = 43,944.15

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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.