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Finding the Third Proportional to 58 and 130.25

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Solution

The third proportional to 58 and 130.25 is: 292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58 : 130.25 = 130.25 : x
  2. Step 2: Convert to fraction form
    58/130.25 = 130.25/x
  3. Step 3: Cross multiply
    58x = 130.25 × 130.25
  4. Step 4: Simplify right side
    58x = 16,965.06
  5. Step 5: Solve for x
    x = 16,965.06/58
  6. Step 6: Final answer
    x = 292.50

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.