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Finding the Fourth Proportional to 3,860.08, 5,330.24 and 3,663.24

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Solution

The fourth proportional to 3,860.08, 5,330.24 and 3,663.24 is: 5,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.08 : 5,330.24 = 3,663.24 : x
  2. Step 2: Convert to fraction form
    3,860.08/5,330.24 = 3,663.24/x
  3. Step 3: Cross multiply
    3,860.08x = 5,330.24 × 3,663.24
  4. Step 4: Simplify right side
    3,860.08x = 19,525,948.38
  5. Step 5: Solve for x
    x = 19,525,948.38/3,860.08
  6. Step 6: Final answer
    x = 5,058.43

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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.