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Finding the Fourth Proportional to 58.51, 88.21 and 55.03

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Solution

The fourth proportional to 58.51, 88.21 and 55.03 is: 82.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.51 : 88.21 = 55.03 : x
  2. Step 2: Convert to fraction form
    58.51/88.21 = 55.03/x
  3. Step 3: Cross multiply
    58.51x = 88.21 × 55.03
  4. Step 4: Simplify right side
    58.51x = 4,854.20
  5. Step 5: Solve for x
    x = 4,854.20/58.51
  6. Step 6: Final answer
    x = 82.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.