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Finding the Fourth Proportional to 13,597,999.20, 20,396,998.80 and 4,013,690.40

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Solution

The fourth proportional to 13,597,999.20, 20,396,998.80 and 4,013,690.40 is: 6,020,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597,999.20 : 20,396,998.80 = 4,013,690.40 : x
  2. Step 2: Convert to fraction form
    13,597,999.20/20,396,998.80 = 4,013,690.40/x
  3. Step 3: Cross multiply
    13,597,999.20x = 20,396,998.80 × 4,013,690.40
  4. Step 4: Simplify right side
    13,597,999.20x = 81,867,238,272,371.52
  5. Step 5: Solve for x
    x = 81,867,238,272,371.52/13,597,999.20
  6. Step 6: Final answer
    x = 6,020,535.60

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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.