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Finding the Fourth Proportional to 60,140.40, 82,986.18 and 33,279.18

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Solution

The fourth proportional to 60,140.40, 82,986.18 and 33,279.18 is: 45,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,140.40 : 82,986.18 = 33,279.18 : x
  2. Step 2: Convert to fraction form
    60,140.40/82,986.18 = 33,279.18/x
  3. Step 3: Cross multiply
    60,140.40x = 82,986.18 × 33,279.18
  4. Step 4: Simplify right side
    60,140.40x = 2,761,712,021.73
  5. Step 5: Solve for x
    x = 2,761,712,021.73/60,140.40
  6. Step 6: Final answer
    x = 45,921.08

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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.