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Finding the Third Proportional to 488.75 and 1,053.88

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Solution

The third proportional to 488.75 and 1,053.88 is: 2,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.75 : 1,053.88 = 1,053.88 : x
  2. Step 2: Convert to fraction form
    488.75/1,053.88 = 1,053.88/x
  3. Step 3: Cross multiply
    488.75x = 1,053.88 × 1,053.88
  4. Step 4: Simplify right side
    488.75x = 1,110,652.52
  5. Step 5: Solve for x
    x = 1,110,652.52/488.75
  6. Step 6: Final answer
    x = 2,272.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.