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Finding the Fourth Proportional to 3,888.22, 5,367.54 and 2,294.32

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Solution

The fourth proportional to 3,888.22, 5,367.54 and 2,294.32 is: 3,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.22 : 5,367.54 = 2,294.32 : x
  2. Step 2: Convert to fraction form
    3,888.22/5,367.54 = 2,294.32/x
  3. Step 3: Cross multiply
    3,888.22x = 5,367.54 × 2,294.32
  4. Step 4: Simplify right side
    3,888.22x = 12,314,842.90
  5. Step 5: Solve for x
    x = 12,314,842.90/3,888.22
  6. Step 6: Final answer
    x = 3,167.22

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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.