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Finding the Fourth Proportional to 60,872.55, 84,002.50 and 34,015.28

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Solution

The fourth proportional to 60,872.55, 84,002.50 and 34,015.28 is: 46,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,872.55 : 84,002.50 = 34,015.28 : x
  2. Step 2: Convert to fraction form
    60,872.55/84,002.50 = 34,015.28/x
  3. Step 3: Cross multiply
    60,872.55x = 84,002.50 × 34,015.28
  4. Step 4: Simplify right side
    60,872.55x = 2,857,368,429.65
  5. Step 5: Solve for x
    x = 2,857,368,429.65/60,872.55
  6. Step 6: Final answer
    x = 46,940.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.