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Finding the Fourth Proportional to 72,508.96, 100,119 and 47,027.44

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Solution

The fourth proportional to 72,508.96, 100,119 and 47,027.44 is: 64,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508.96 : 100,119 = 47,027.44 : x
  2. Step 2: Convert to fraction form
    72,508.96/100,119 = 47,027.44/x
  3. Step 3: Cross multiply
    72,508.96x = 100,119 × 47,027.44
  4. Step 4: Simplify right side
    72,508.96x = 4,708,340,265.36
  5. Step 5: Solve for x
    x = 4,708,340,265.36/72,508.96
  6. Step 6: Final answer
    x = 64,934.60

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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.