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Finding the Fourth Proportional to 8,670.00, 11,964.61 and 4,691.12

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Solution

The fourth proportional to 8,670.00, 11,964.61 and 4,691.12 is: 6,473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.00 : 11,964.61 = 4,691.12 : x
  2. Step 2: Convert to fraction form
    8,670.00/11,964.61 = 4,691.12/x
  3. Step 3: Cross multiply
    8,670.00x = 11,964.61 × 4,691.12
  4. Step 4: Simplify right side
    8,670.00x = 56,127,367.30
  5. Step 5: Solve for x
    x = 56,127,367.30/8,670.00
  6. Step 6: Final answer
    x = 6,473.74

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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.