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Finding the Fourth Proportional to 8,273,104.80, 12,409,657.20 and 5,585,719.20

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Solution

The fourth proportional to 8,273,104.80, 12,409,657.20 and 5,585,719.20 is: 8,378,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273,104.80 : 12,409,657.20 = 5,585,719.20 : x
  2. Step 2: Convert to fraction form
    8,273,104.80/12,409,657.20 = 5,585,719.20/x
  3. Step 3: Cross multiply
    8,273,104.80x = 12,409,657.20 × 5,585,719.20
  4. Step 4: Simplify right side
    8,273,104.80x = 69,316,860,487,458.23
  5. Step 5: Solve for x
    x = 69,316,860,487,458.23/8,273,104.80
  6. Step 6: Final answer
    x = 8,378,578.80

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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.