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Finding the Fourth Proportional to 67.59, 100.80 and 59.51

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Solution

The fourth proportional to 67.59, 100.80 and 59.51 is: 88.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.59 : 100.80 = 59.51 : x
  2. Step 2: Convert to fraction form
    67.59/100.80 = 59.51/x
  3. Step 3: Cross multiply
    67.59x = 100.80 × 59.51
  4. Step 4: Simplify right side
    67.59x = 5,998.10
  5. Step 5: Solve for x
    x = 5,998.10/67.59
  6. Step 6: Final answer
    x = 88.74

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.