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Finding the Fourth Proportional to 6,909,850.80, 10,361,665.80 and 2,648,602.80

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Solution

The fourth proportional to 6,909,850.80, 10,361,665.80 and 2,648,602.80 is: 3,971,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909,850.80 : 10,361,665.80 = 2,648,602.80 : x
  2. Step 2: Convert to fraction form
    6,909,850.80/10,361,665.80 = 2,648,602.80/x
  3. Step 3: Cross multiply
    6,909,850.80x = 10,361,665.80 × 2,648,602.80
  4. Step 4: Simplify right side
    6,909,850.80x = 27,443,937,050,544.24
  5. Step 5: Solve for x
    x = 27,443,937,050,544.24/6,909,850.80
  6. Step 6: Final answer
    x = 3,971,711.96

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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.