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Finding the Fourth Proportional to 96.77, 133.49 and 64.01

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Solution

The fourth proportional to 96.77, 133.49 and 64.01 is: 88.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.77 : 133.49 = 64.01 : x
  2. Step 2: Convert to fraction form
    96.77/133.49 = 64.01/x
  3. Step 3: Cross multiply
    96.77x = 133.49 × 64.01
  4. Step 4: Simplify right side
    96.77x = 8,543.71
  5. Step 5: Solve for x
    x = 8,543.71/96.77
  6. Step 6: Final answer
    x = 88.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.