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Finding the Fourth Proportional to 75.95, 113.76 and 35.32

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Solution

The fourth proportional to 75.95, 113.76 and 35.32 is: 52.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.95 : 113.76 = 35.32 : x
  2. Step 2: Convert to fraction form
    75.95/113.76 = 35.32/x
  3. Step 3: Cross multiply
    75.95x = 113.76 × 35.32
  4. Step 4: Simplify right side
    75.95x = 4,018.00
  5. Step 5: Solve for x
    x = 4,018.00/75.95
  6. Step 6: Final answer
    x = 52.90

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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.