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Finding the Fourth Proportional to 32.29, 48.45 and 9.47

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Solution

The fourth proportional to 32.29, 48.45 and 9.47 is: 14.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.29 : 48.45 = 9.47 : x
  2. Step 2: Convert to fraction form
    32.29/48.45 = 9.47/x
  3. Step 3: Cross multiply
    32.29x = 48.45 × 9.47
  4. Step 4: Simplify right side
    32.29x = 458.64
  5. Step 5: Solve for x
    x = 458.64/32.29
  6. Step 6: Final answer
    x = 14.20

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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.