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Finding the Fourth Proportional to 8,508,853.60, 12,771,574.80 and 4,253,826.40

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Solution

The fourth proportional to 8,508,853.60, 12,771,574.80 and 4,253,826.40 is: 6,384,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508,853.60 : 12,771,574.80 = 4,253,826.40 : x
  2. Step 2: Convert to fraction form
    8,508,853.60/12,771,574.80 = 4,253,826.40/x
  3. Step 3: Cross multiply
    8,508,853.60x = 12,771,574.80 × 4,253,826.40
  4. Step 4: Simplify right side
    8,508,853.60x = 54,328,062,053,814.73
  5. Step 5: Solve for x
    x = 54,328,062,053,814.73/8,508,853.60
  6. Step 6: Final answer
    x = 6,384,886.21

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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.