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Finding the Fourth Proportional to 67.59, 101.49 and 43.29

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Solution

The fourth proportional to 67.59, 101.49 and 43.29 is: 65.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.59 : 101.49 = 43.29 : x
  2. Step 2: Convert to fraction form
    67.59/101.49 = 43.29/x
  3. Step 3: Cross multiply
    67.59x = 101.49 × 43.29
  4. Step 4: Simplify right side
    67.59x = 4,393.50
  5. Step 5: Solve for x
    x = 4,393.50/67.59
  6. Step 6: Final answer
    x = 65.00

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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.