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Finding the Fourth Proportional to 32.16, 48.25 and 9.35

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Solution

The fourth proportional to 32.16, 48.25 and 9.35 is: 14.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.16 : 48.25 = 9.35 : x
  2. Step 2: Convert to fraction form
    32.16/48.25 = 9.35/x
  3. Step 3: Cross multiply
    32.16x = 48.25 × 9.35
  4. Step 4: Simplify right side
    32.16x = 451.32
  5. Step 5: Solve for x
    x = 451.32/32.16
  6. Step 6: Final answer
    x = 14.03

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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.