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Finding the Fourth Proportional to 60,728.04, 91,101.72 and 25,668

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Solution

The fourth proportional to 60,728.04, 91,101.72 and 25,668 is: 38,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.04 : 91,101.72 = 25,668 : x
  2. Step 2: Convert to fraction form
    60,728.04/91,101.72 = 25,668/x
  3. Step 3: Cross multiply
    60,728.04x = 91,101.72 × 25,668
  4. Step 4: Simplify right side
    60,728.04x = 2,338,398,948.96
  5. Step 5: Solve for x
    x = 2,338,398,948.96/60,728.04
  6. Step 6: Final answer
    x = 38,506.08

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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.