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Finding the Fourth Proportional to 7,468,929.60, 11,204,776.80 and 2,420,404.80

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Solution

The fourth proportional to 7,468,929.60, 11,204,776.80 and 2,420,404.80 is: 3,631,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468,929.60 : 11,204,776.80 = 2,420,404.80 : x
  2. Step 2: Convert to fraction form
    7,468,929.60/11,204,776.80 = 2,420,404.80/x
  3. Step 3: Cross multiply
    7,468,929.60x = 11,204,776.80 × 2,420,404.80
  4. Step 4: Simplify right side
    7,468,929.60x = 27,120,095,549,648.64
  5. Step 5: Solve for x
    x = 27,120,095,549,648.64/7,468,929.60
  6. Step 6: Final answer
    x = 3,631,055.18

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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.