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Finding the Fourth Proportional to 82.69, 124.01 and 37.00

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Solution

The fourth proportional to 82.69, 124.01 and 37.00 is: 55.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.69 : 124.01 = 37.00 : x
  2. Step 2: Convert to fraction form
    82.69/124.01 = 37.00/x
  3. Step 3: Cross multiply
    82.69x = 124.01 × 37.00
  4. Step 4: Simplify right side
    82.69x = 4,588.48
  5. Step 5: Solve for x
    x = 4,588.48/82.69
  6. Step 6: Final answer
    x = 55.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.