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Finding the Fourth Proportional to 12,842.57, 17,716.62 and 8,060.13

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Solution

The fourth proportional to 12,842.57, 17,716.62 and 8,060.13 is: 11,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.57 : 17,716.62 = 8,060.13 : x
  2. Step 2: Convert to fraction form
    12,842.57/17,716.62 = 8,060.13/x
  3. Step 3: Cross multiply
    12,842.57x = 17,716.62 × 8,060.13
  4. Step 4: Simplify right side
    12,842.57x = 142,798,260.36
  5. Step 5: Solve for x
    x = 142,798,260.36/12,842.57
  6. Step 6: Final answer
    x = 11,119.13

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Double scale
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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.