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Finding the Fourth Proportional to 7,375,812.80, 11,063,719.20 and 5,882,820.80

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Solution

The fourth proportional to 7,375,812.80, 11,063,719.20 and 5,882,820.80 is: 8,824,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375,812.80 : 11,063,719.20 = 5,882,820.80 : x
  2. Step 2: Convert to fraction form
    7,375,812.80/11,063,719.20 = 5,882,820.80/x
  3. Step 3: Cross multiply
    7,375,812.80x = 11,063,719.20 × 5,882,820.80
  4. Step 4: Simplify right side
    7,375,812.80x = 65,085,877,435,119.35
  5. Step 5: Solve for x
    x = 65,085,877,435,119.35/7,375,812.80
  6. Step 6: Final answer
    x = 8,824,231.20

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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.