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Finding the Fourth Proportional to 12,799.14, 17,661.24 and 7,132.50

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Solution

The fourth proportional to 12,799.14, 17,661.24 and 7,132.50 is: 9,841.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.14 : 17,661.24 = 7,132.50 : x
  2. Step 2: Convert to fraction form
    12,799.14/17,661.24 = 7,132.50/x
  3. Step 3: Cross multiply
    12,799.14x = 17,661.24 × 7,132.50
  4. Step 4: Simplify right side
    12,799.14x = 125,968,794.30
  5. Step 5: Solve for x
    x = 125,968,794.30/12,799.14
  6. Step 6: Final answer
    x = 9,841.97

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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.