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Finding the Fourth Proportional to 35.48, 53.28 and 32.46

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Solution

The fourth proportional to 35.48, 53.28 and 32.46 is: 48.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.48 : 53.28 = 32.46 : x
  2. Step 2: Convert to fraction form
    35.48/53.28 = 32.46/x
  3. Step 3: Cross multiply
    35.48x = 53.28 × 32.46
  4. Step 4: Simplify right side
    35.48x = 1,729.47
  5. Step 5: Solve for x
    x = 1,729.47/35.48
  6. Step 6: Final answer
    x = 48.74

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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.