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Finding the Fourth Proportional to 53,449.74, 80,202.27 and 38,779.74

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Solution

The fourth proportional to 53,449.74, 80,202.27 and 38,779.74 is: 58,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,449.74 : 80,202.27 = 38,779.74 : x
  2. Step 2: Convert to fraction form
    53,449.74/80,202.27 = 38,779.74/x
  3. Step 3: Cross multiply
    53,449.74x = 80,202.27 × 38,779.74
  4. Step 4: Simplify right side
    53,449.74x = 3,110,223,178.01
  5. Step 5: Solve for x
    x = 3,110,223,178.01/53,449.74
  6. Step 6: Final answer
    x = 58,189.68

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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.