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Finding the Fourth Proportional to 18,302.16, 25,256.79 and 10,747.11

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Solution

The fourth proportional to 18,302.16, 25,256.79 and 10,747.11 is: 14,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.16 : 25,256.79 = 10,747.11 : x
  2. Step 2: Convert to fraction form
    18,302.16/25,256.79 = 10,747.11/x
  3. Step 3: Cross multiply
    18,302.16x = 25,256.79 × 10,747.11
  4. Step 4: Simplify right side
    18,302.16x = 271,437,500.38
  5. Step 5: Solve for x
    x = 271,437,500.38/18,302.16
  6. Step 6: Final answer
    x = 14,830.90

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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.