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Finding the Fourth Proportional to 48,691.64, 73,009.50 and 19,074.80

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Solution

The fourth proportional to 48,691.64, 73,009.50 and 19,074.80 is: 28,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,691.64 : 73,009.50 = 19,074.80 : x
  2. Step 2: Convert to fraction form
    48,691.64/73,009.50 = 19,074.80/x
  3. Step 3: Cross multiply
    48,691.64x = 73,009.50 × 19,074.80
  4. Step 4: Simplify right side
    48,691.64x = 1,392,641,610.60
  5. Step 5: Solve for x
    x = 1,392,641,610.60/48,691.64
  6. Step 6: Final answer
    x = 28,601.25

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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.