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Finding the Fourth Proportional to 44.32, 61.20 and 41.28

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Solution

The fourth proportional to 44.32, 61.20 and 41.28 is: 57.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.32 : 61.20 = 41.28 : x
  2. Step 2: Convert to fraction form
    44.32/61.20 = 41.28/x
  3. Step 3: Cross multiply
    44.32x = 61.20 × 41.28
  4. Step 4: Simplify right side
    44.32x = 2,526.34
  5. Step 5: Solve for x
    x = 2,526.34/44.32
  6. Step 6: Final answer
    x = 57.00

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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.