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Finding the Fourth Proportional to 8,668.13, 12,994.22 and 4,713.61

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Solution

The fourth proportional to 8,668.13, 12,994.22 and 4,713.61 is: 7,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.13 : 12,994.22 = 4,713.61 : x
  2. Step 2: Convert to fraction form
    8,668.13/12,994.22 = 4,713.61/x
  3. Step 3: Cross multiply
    8,668.13x = 12,994.22 × 4,713.61
  4. Step 4: Simplify right side
    8,668.13x = 61,249,685.33
  5. Step 5: Solve for x
    x = 61,249,685.33/8,668.13
  6. Step 6: Final answer
    x = 7,066.08

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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.