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Finding the Fourth Proportional to 60,891.74, 91,348.94 and 21,473.90

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Solution

The fourth proportional to 60,891.74, 91,348.94 and 21,473.90 is: 32,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,891.74 : 91,348.94 = 21,473.90 : x
  2. Step 2: Convert to fraction form
    60,891.74/91,348.94 = 21,473.90/x
  3. Step 3: Cross multiply
    60,891.74x = 91,348.94 × 21,473.90
  4. Step 4: Simplify right side
    60,891.74x = 1,961,617,599.61
  5. Step 5: Solve for x
    x = 1,961,617,599.61/60,891.74
  6. Step 6: Final answer
    x = 32,214.84

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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.