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Finding the Fourth Proportional to 60,012.80, 89,963.54 and 20,560.54

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Solution

The fourth proportional to 60,012.80, 89,963.54 and 20,560.54 is: 30,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,012.80 : 89,963.54 = 20,560.54 : x
  2. Step 2: Convert to fraction form
    60,012.80/89,963.54 = 20,560.54/x
  3. Step 3: Cross multiply
    60,012.80x = 89,963.54 × 20,560.54
  4. Step 4: Simplify right side
    60,012.80x = 1,849,698,962.71
  5. Step 5: Solve for x
    x = 1,849,698,962.71/60,012.80
  6. Step 6: Final answer
    x = 30,821.74

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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.