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Finding the Fourth Proportional to 62.56, 93.46 and 56.88

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Solution

The fourth proportional to 62.56, 93.46 and 56.88 is: 84.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.56 : 93.46 = 56.88 : x
  2. Step 2: Convert to fraction form
    62.56/93.46 = 56.88/x
  3. Step 3: Cross multiply
    62.56x = 93.46 × 56.88
  4. Step 4: Simplify right side
    62.56x = 5,316.00
  5. Step 5: Solve for x
    x = 5,316.00/62.56
  6. Step 6: Final answer
    x = 84.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.