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Finding the Fourth Proportional to 60,671.68, 91,048.52 and 21,229.13

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Solution

The fourth proportional to 60,671.68, 91,048.52 and 21,229.13 is: 31,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,671.68 : 91,048.52 = 21,229.13 : x
  2. Step 2: Convert to fraction form
    60,671.68/91,048.52 = 21,229.13/x
  3. Step 3: Cross multiply
    60,671.68x = 91,048.52 × 21,229.13
  4. Step 4: Simplify right side
    60,671.68x = 1,932,880,988.86
  5. Step 5: Solve for x
    x = 1,932,880,988.86/60,671.68
  6. Step 6: Final answer
    x = 31,858.04

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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.