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Finding the Fourth Proportional to 83,812.76, 125,692.40 and 27,642.36

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Solution

The fourth proportional to 83,812.76, 125,692.40 and 27,642.36 is: 41,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,812.76 : 125,692.40 = 27,642.36 : x
  2. Step 2: Convert to fraction form
    83,812.76/125,692.40 = 27,642.36/x
  3. Step 3: Cross multiply
    83,812.76x = 125,692.40 × 27,642.36
  4. Step 4: Simplify right side
    83,812.76x = 3,474,434,570.06
  5. Step 5: Solve for x
    x = 3,474,434,570.06/83,812.76
  6. Step 6: Final answer
    x = 41,454.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.