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Finding the Fourth Proportional to 8,909.44, 12,294.40 and 4,930.08

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Solution

The fourth proportional to 8,909.44, 12,294.40 and 4,930.08 is: 6,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.44 : 12,294.40 = 4,930.08 : x
  2. Step 2: Convert to fraction form
    8,909.44/12,294.40 = 4,930.08/x
  3. Step 3: Cross multiply
    8,909.44x = 12,294.40 × 4,930.08
  4. Step 4: Simplify right side
    8,909.44x = 60,612,375.55
  5. Step 5: Solve for x
    x = 60,612,375.55/8,909.44
  6. Step 6: Final answer
    x = 6,803.16

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1.5x scale

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.