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Finding the Fourth Proportional to 10.56, 14.59 and 7.32

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Solution

The fourth proportional to 10.56, 14.59 and 7.32 is: 10.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.56 : 14.59 = 7.32 : x
  2. Step 2: Convert to fraction form
    10.56/14.59 = 7.32/x
  3. Step 3: Cross multiply
    10.56x = 14.59 × 7.32
  4. Step 4: Simplify right side
    10.56x = 106.80
  5. Step 5: Solve for x
    x = 106.80/10.56
  6. Step 6: Final answer
    x = 10.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.