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Finding the Fourth Proportional to 5,799.12, 8,701.92 and 2,721.12

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Solution

The fourth proportional to 5,799.12, 8,701.92 and 2,721.12 is: 4,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.12 : 8,701.92 = 2,721.12 : x
  2. Step 2: Convert to fraction form
    5,799.12/8,701.92 = 2,721.12/x
  3. Step 3: Cross multiply
    5,799.12x = 8,701.92 × 2,721.12
  4. Step 4: Simplify right side
    5,799.12x = 23,678,968.55
  5. Step 5: Solve for x
    x = 23,678,968.55/5,799.12
  6. Step 6: Final answer
    x = 4,083.20

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1.5x scale

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.