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Finding the Fourth Proportional to 15,043.72, 22,559.88 and 10,871.11

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Solution

The fourth proportional to 15,043.72, 22,559.88 and 10,871.11 is: 16,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.72 : 22,559.88 = 10,871.11 : x
  2. Step 2: Convert to fraction form
    15,043.72/22,559.88 = 10,871.11/x
  3. Step 3: Cross multiply
    15,043.72x = 22,559.88 × 10,871.11
  4. Step 4: Simplify right side
    15,043.72x = 245,250,937.07
  5. Step 5: Solve for x
    x = 245,250,937.07/15,043.72
  6. Step 6: Final answer
    x = 16,302.55

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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.