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Finding the Fourth Proportional to 63,456.70, 87,559.13 and 36,220.34

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Solution

The fourth proportional to 63,456.70, 87,559.13 and 36,220.34 is: 49,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,456.70 : 87,559.13 = 36,220.34 : x
  2. Step 2: Convert to fraction form
    63,456.70/87,559.13 = 36,220.34/x
  3. Step 3: Cross multiply
    63,456.70x = 87,559.13 × 36,220.34
  4. Step 4: Simplify right side
    63,456.70x = 3,171,421,768.15
  5. Step 5: Solve for x
    x = 3,171,421,768.15/63,456.70
  6. Step 6: Final answer
    x = 49,977.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.