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Finding the Fourth Proportional to 63,790.85, 88,016.36 and 53,620.54

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Solution

The fourth proportional to 63,790.85, 88,016.36 and 53,620.54 is: 73,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,790.85 : 88,016.36 = 53,620.54 : x
  2. Step 2: Convert to fraction form
    63,790.85/88,016.36 = 53,620.54/x
  3. Step 3: Cross multiply
    63,790.85x = 88,016.36 × 53,620.54
  4. Step 4: Simplify right side
    63,790.85x = 4,719,484,752.03
  5. Step 5: Solve for x
    x = 4,719,484,752.03/63,790.85
  6. Step 6: Final answer
    x = 73,983.73

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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.