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Finding the Fourth Proportional to 3,862.49, 5,326.22 and 3,304.80

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Solution

The fourth proportional to 3,862.49, 5,326.22 and 3,304.80 is: 4,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.49 : 5,326.22 = 3,304.80 : x
  2. Step 2: Convert to fraction form
    3,862.49/5,326.22 = 3,304.80/x
  3. Step 3: Cross multiply
    3,862.49x = 5,326.22 × 3,304.80
  4. Step 4: Simplify right side
    3,862.49x = 17,602,100.12
  5. Step 5: Solve for x
    x = 17,602,100.12/3,862.49
  6. Step 6: Final answer
    x = 4,557.20

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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.