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Finding the Fourth Proportional to 3,866.31, 5,335.47 and 2,294.46

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Solution

The fourth proportional to 3,866.31, 5,335.47 and 2,294.46 is: 3,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.31 : 5,335.47 = 2,294.46 : x
  2. Step 2: Convert to fraction form
    3,866.31/5,335.47 = 2,294.46/x
  3. Step 3: Cross multiply
    3,866.31x = 5,335.47 × 2,294.46
  4. Step 4: Simplify right side
    3,866.31x = 12,242,022.50
  5. Step 5: Solve for x
    x = 12,242,022.50/3,866.31
  6. Step 6: Final answer
    x = 3,166.33

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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.