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Finding the Third Proportional to 28,909.41 and 45,311.91

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Solution

The third proportional to 28,909.41 and 45,311.91 is: 71,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.41 : 45,311.91 = 45,311.91 : x
  2. Step 2: Convert to fraction form
    28,909.41/45,311.91 = 45,311.91/x
  3. Step 3: Cross multiply
    28,909.41x = 45,311.91 × 45,311.91
  4. Step 4: Simplify right side
    28,909.41x = 2,053,168,848.01
  5. Step 5: Solve for x
    x = 2,053,168,848.01/28,909.41
  6. Step 6: Final answer
    x = 71,020.79

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.