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Finding the Fourth Proportional to 8,992.17, 13,462.80 and 4,765.79

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Solution

The fourth proportional to 8,992.17, 13,462.80 and 4,765.79 is: 7,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.17 : 13,462.80 = 4,765.79 : x
  2. Step 2: Convert to fraction form
    8,992.17/13,462.80 = 4,765.79/x
  3. Step 3: Cross multiply
    8,992.17x = 13,462.80 × 4,765.79
  4. Step 4: Simplify right side
    8,992.17x = 64,160,810.30
  5. Step 5: Solve for x
    x = 64,160,810.30/8,992.17
  6. Step 6: Final answer
    x = 7,135.19

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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.