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Finding the Fourth Proportional to 60.48, 90.76 and 32

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Solution

The fourth proportional to 60.48, 90.76 and 32 is: 48.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.48 : 90.76 = 32 : x
  2. Step 2: Convert to fraction form
    60.48/90.76 = 32/x
  3. Step 3: Cross multiply
    60.48x = 90.76 × 32
  4. Step 4: Simplify right side
    60.48x = 2,904.32
  5. Step 5: Solve for x
    x = 2,904.32/60.48
  6. Step 6: Final answer
    x = 48.02

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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.