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Finding the Fourth Proportional to 8,691.90, 11,994.92 and 4,713.04

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Solution

The fourth proportional to 8,691.90, 11,994.92 and 4,713.04 is: 6,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.90 : 11,994.92 = 4,713.04 : x
  2. Step 2: Convert to fraction form
    8,691.90/11,994.92 = 4,713.04/x
  3. Step 3: Cross multiply
    8,691.90x = 11,994.92 × 4,713.04
  4. Step 4: Simplify right side
    8,691.90x = 56,532,537.76
  5. Step 5: Solve for x
    x = 56,532,537.76/8,691.90
  6. Step 6: Final answer
    x = 6,504.05

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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.