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Finding the Fourth Proportional to 3,972.60, 5,482.14 and 2,204.22

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Solution

The fourth proportional to 3,972.60, 5,482.14 and 2,204.22 is: 3,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.60 : 5,482.14 = 2,204.22 : x
  2. Step 2: Convert to fraction form
    3,972.60/5,482.14 = 2,204.22/x
  3. Step 3: Cross multiply
    3,972.60x = 5,482.14 × 2,204.22
  4. Step 4: Simplify right side
    3,972.60x = 12,083,842.63
  5. Step 5: Solve for x
    x = 12,083,842.63/3,972.60
  6. Step 6: Final answer
    x = 3,041.80

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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.