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Finding the Fourth Proportional to 8,670.25, 11,964.84 and 4,691.27

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Solution

The fourth proportional to 8,670.25, 11,964.84 and 4,691.27 is: 6,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.25 : 11,964.84 = 4,691.27 : x
  2. Step 2: Convert to fraction form
    8,670.25/11,964.84 = 4,691.27/x
  3. Step 3: Cross multiply
    8,670.25x = 11,964.84 × 4,691.27
  4. Step 4: Simplify right side
    8,670.25x = 56,130,294.95
  5. Step 5: Solve for x
    x = 56,130,294.95/8,670.25
  6. Step 6: Final answer
    x = 6,473.90

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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.