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Finding the Fourth Proportional to 15,291.12, 22,936.04 and 4,902.64

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Solution

The fourth proportional to 15,291.12, 22,936.04 and 4,902.64 is: 7,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.12 : 22,936.04 = 4,902.64 : x
  2. Step 2: Convert to fraction form
    15,291.12/22,936.04 = 4,902.64/x
  3. Step 3: Cross multiply
    15,291.12x = 22,936.04 × 4,902.64
  4. Step 4: Simplify right side
    15,291.12x = 112,447,147.15
  5. Step 5: Solve for x
    x = 112,447,147.15/15,291.12
  6. Step 6: Final answer
    x = 7,353.75

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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.