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Finding the Fourth Proportional to 81,347.66, 121,992.89 and 24,404.58

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Solution

The fourth proportional to 81,347.66, 121,992.89 and 24,404.58 is: 36,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,347.66 : 121,992.89 = 24,404.58 : x
  2. Step 2: Convert to fraction form
    81,347.66/121,992.89 = 24,404.58/x
  3. Step 3: Cross multiply
    81,347.66x = 121,992.89 × 24,404.58
  4. Step 4: Simplify right side
    81,347.66x = 2,977,185,121.41
  5. Step 5: Solve for x
    x = 2,977,185,121.41/81,347.66
  6. Step 6: Final answer
    x = 36,598.29

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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.