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Finding the Fourth Proportional to 3,607.20, 4,978.67 and 2,348.46

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Solution

The fourth proportional to 3,607.20, 4,978.67 and 2,348.46 is: 3,241.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.20 : 4,978.67 = 2,348.46 : x
  2. Step 2: Convert to fraction form
    3,607.20/4,978.67 = 2,348.46/x
  3. Step 3: Cross multiply
    3,607.20x = 4,978.67 × 2,348.46
  4. Step 4: Simplify right side
    3,607.20x = 11,692,195.61
  5. Step 5: Solve for x
    x = 11,692,195.61/3,607.20
  6. Step 6: Final answer
    x = 3,241.35

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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.