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Finding the Fourth Proportional to 8,549.80, 11,799.18 and 5,013.28

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Solution

The fourth proportional to 8,549.80, 11,799.18 and 5,013.28 is: 6,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.80 : 11,799.18 = 5,013.28 : x
  2. Step 2: Convert to fraction form
    8,549.80/11,799.18 = 5,013.28/x
  3. Step 3: Cross multiply
    8,549.80x = 11,799.18 × 5,013.28
  4. Step 4: Simplify right side
    8,549.80x = 59,152,593.11
  5. Step 5: Solve for x
    x = 59,152,593.11/8,549.80
  6. Step 6: Final answer
    x = 6,918.59

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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.