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Finding the Fourth Proportional to 63,705.90, 87,906.50 and 35,020.83

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Solution

The fourth proportional to 63,705.90, 87,906.50 and 35,020.83 is: 48,324.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,705.90 : 87,906.50 = 35,020.83 : x
  2. Step 2: Convert to fraction form
    63,705.90/87,906.50 = 35,020.83/x
  3. Step 3: Cross multiply
    63,705.90x = 87,906.50 × 35,020.83
  4. Step 4: Simplify right side
    63,705.90x = 3,078,558,679.95
  5. Step 5: Solve for x
    x = 3,078,558,679.95/63,705.90
  6. Step 6: Final answer
    x = 48,324.55

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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.