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Finding the Fourth Proportional to 3,866.52, 5,335.80 and 2,098.16

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Solution

The fourth proportional to 3,866.52, 5,335.80 and 2,098.16 is: 2,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.52 : 5,335.80 = 2,098.16 : x
  2. Step 2: Convert to fraction form
    3,866.52/5,335.80 = 2,098.16/x
  3. Step 3: Cross multiply
    3,866.52x = 5,335.80 × 2,098.16
  4. Step 4: Simplify right side
    3,866.52x = 11,195,362.13
  5. Step 5: Solve for x
    x = 11,195,362.13/3,866.52
  6. Step 6: Final answer
    x = 2,895.46

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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.