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Finding the Fourth Proportional to 12,873,540.80, 18,073,345.60 and 12,873,540.80

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Solution

The fourth proportional to 12,873,540.80, 18,073,345.60 and 12,873,540.80 is: 18,073,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873,540.80 : 18,073,345.60 = 12,873,540.80 : x
  2. Step 2: Convert to fraction form
    12,873,540.80/18,073,345.60 = 12,873,540.80/x
  3. Step 3: Cross multiply
    12,873,540.80x = 18,073,345.60 × 12,873,540.80
  4. Step 4: Simplify right side
    12,873,540.80x = 232,667,951,974,100.50
  5. Step 5: Solve for x
    x = 232,667,951,974,100.50/12,873,540.80
  6. Step 6: Final answer
    x = 18,073,345.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.