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Finding the Fourth Proportional to 9,294.48, 13,947.80 and 8,679.49

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Solution

The fourth proportional to 9,294.48, 13,947.80 and 8,679.49 is: 13,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,294.48 : 13,947.80 = 8,679.49 : x
  2. Step 2: Convert to fraction form
    9,294.48/13,947.80 = 8,679.49/x
  3. Step 3: Cross multiply
    9,294.48x = 13,947.80 × 8,679.49
  4. Step 4: Simplify right side
    9,294.48x = 121,059,712.36
  5. Step 5: Solve for x
    x = 121,059,712.36/9,294.48
  6. Step 6: Final answer
    x = 13,024.90

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1.5x scale

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.