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Finding the Fourth Proportional to 4,066.88, 5,612.31 and 2,203.88

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Solution

The fourth proportional to 4,066.88, 5,612.31 and 2,203.88 is: 3,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,066.88 : 5,612.31 = 2,203.88 : x
  2. Step 2: Convert to fraction form
    4,066.88/5,612.31 = 2,203.88/x
  3. Step 3: Cross multiply
    4,066.88x = 5,612.31 × 2,203.88
  4. Step 4: Simplify right side
    4,066.88x = 12,368,829.70
  5. Step 5: Solve for x
    x = 12,368,829.70/4,066.88
  6. Step 6: Final answer
    x = 3,041.36

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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.