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Finding the Fourth Proportional to 8,228,551.80, 12,342,827.70 and 7,010,830.20

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Solution

The fourth proportional to 8,228,551.80, 12,342,827.70 and 7,010,830.20 is: 10,516,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228,551.80 : 12,342,827.70 = 7,010,830.20 : x
  2. Step 2: Convert to fraction form
    8,228,551.80/12,342,827.70 = 7,010,830.20/x
  3. Step 3: Cross multiply
    8,228,551.80x = 12,342,827.70 × 7,010,830.20
  4. Step 4: Simplify right side
    8,228,551.80x = 86,533,469,192,556.53
  5. Step 5: Solve for x
    x = 86,533,469,192,556.53/8,228,551.80
  6. Step 6: Final answer
    x = 10,516,245.30

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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.