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Finding the Fourth Proportional to 63,678.80, 95,518.20 and 55,902.80

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Solution

The fourth proportional to 63,678.80, 95,518.20 and 55,902.80 is: 83,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.80 : 95,518.20 = 55,902.80 : x
  2. Step 2: Convert to fraction form
    63,678.80/95,518.20 = 55,902.80/x
  3. Step 3: Cross multiply
    63,678.80x = 95,518.20 × 55,902.80
  4. Step 4: Simplify right side
    63,678.80x = 5,339,734,830.96
  5. Step 5: Solve for x
    x = 5,339,734,830.96/63,678.80
  6. Step 6: Final answer
    x = 83,854.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.