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Finding the Fourth Proportional to 60,139.67, 82,991.43 and 33,280.56

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Solution

The fourth proportional to 60,139.67, 82,991.43 and 33,280.56 is: 45,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.67 : 82,991.43 = 33,280.56 : x
  2. Step 2: Convert to fraction form
    60,139.67/82,991.43 = 33,280.56/x
  3. Step 3: Cross multiply
    60,139.67x = 82,991.43 × 33,280.56
  4. Step 4: Simplify right side
    60,139.67x = 2,762,001,265.60
  5. Step 5: Solve for x
    x = 2,762,001,265.60/60,139.67
  6. Step 6: Final answer
    x = 45,926.45

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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.