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Finding the Fourth Proportional to 9,118.75, 13,672.65 and 3,565.48

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Solution

The fourth proportional to 9,118.75, 13,672.65 and 3,565.48 is: 5,346.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.75 : 13,672.65 = 3,565.48 : x
  2. Step 2: Convert to fraction form
    9,118.75/13,672.65 = 3,565.48/x
  3. Step 3: Cross multiply
    9,118.75x = 13,672.65 × 3,565.48
  4. Step 4: Simplify right side
    9,118.75x = 48,749,560.12
  5. Step 5: Solve for x
    x = 48,749,560.12/9,118.75
  6. Step 6: Final answer
    x = 5,346.08

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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.