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Finding the Fourth Proportional to 8,986,543.20, 13,479,814.80 and 2,597,441.40

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Solution

The fourth proportional to 8,986,543.20, 13,479,814.80 and 2,597,441.40 is: 3,896,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986,543.20 : 13,479,814.80 = 2,597,441.40 : x
  2. Step 2: Convert to fraction form
    8,986,543.20/13,479,814.80 = 2,597,441.40/x
  3. Step 3: Cross multiply
    8,986,543.20x = 13,479,814.80 × 2,597,441.40
  4. Step 4: Simplify right side
    8,986,543.20x = 35,013,029,025,852.72
  5. Step 5: Solve for x
    x = 35,013,029,025,852.72/8,986,543.20
  6. Step 6: Final answer
    x = 3,896,162.10

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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.