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Finding the Fourth Proportional to 5,598.79, 7,726.17 and 3,080.90

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Solution

The fourth proportional to 5,598.79, 7,726.17 and 3,080.90 is: 4,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598.79 : 7,726.17 = 3,080.90 : x
  2. Step 2: Convert to fraction form
    5,598.79/7,726.17 = 3,080.90/x
  3. Step 3: Cross multiply
    5,598.79x = 7,726.17 × 3,080.90
  4. Step 4: Simplify right side
    5,598.79x = 23,803,531.60
  5. Step 5: Solve for x
    x = 23,803,531.60/5,598.79
  6. Step 6: Final answer
    x = 4,251.55

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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.