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Finding the Fourth Proportional to 60,139.87, 82,991.77 and 33,280.77

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Solution

The fourth proportional to 60,139.87, 82,991.77 and 33,280.77 is: 45,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.87 : 82,991.77 = 33,280.77 : x
  2. Step 2: Convert to fraction form
    60,139.87/82,991.77 = 33,280.77/x
  3. Step 3: Cross multiply
    60,139.87x = 82,991.77 × 33,280.77
  4. Step 4: Simplify right side
    60,139.87x = 2,762,030,009.26
  5. Step 5: Solve for x
    x = 2,762,030,009.26/60,139.87
  6. Step 6: Final answer
    x = 45,926.77

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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.