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Finding the Fourth Proportional to 59.36, 88.80 and 48.56

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Solution

The fourth proportional to 59.36, 88.80 and 48.56 is: 72.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.36 : 88.80 = 48.56 : x
  2. Step 2: Convert to fraction form
    59.36/88.80 = 48.56/x
  3. Step 3: Cross multiply
    59.36x = 88.80 × 48.56
  4. Step 4: Simplify right side
    59.36x = 4,312.13
  5. Step 5: Solve for x
    x = 4,312.13/59.36
  6. Step 6: Final answer
    x = 72.64

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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.