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Finding the Fourth Proportional to 81,796.47, 122,694.90 and 24,870.90

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Solution

The fourth proportional to 81,796.47, 122,694.90 and 24,870.90 is: 37,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,796.47 : 122,694.90 = 24,870.90 : x
  2. Step 2: Convert to fraction form
    81,796.47/122,694.90 = 24,870.90/x
  3. Step 3: Cross multiply
    81,796.47x = 122,694.90 × 24,870.90
  4. Step 4: Simplify right side
    81,796.47x = 3,051,532,588.41
  5. Step 5: Solve for x
    x = 3,051,532,588.41/81,796.47
  6. Step 6: Final answer
    x = 37,306.41

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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.