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Finding the Fourth Proportional to 8,694,861.20, 13,038,355.20 and 3,301,719.20

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Solution

The fourth proportional to 8,694,861.20, 13,038,355.20 and 3,301,719.20 is: 4,951,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694,861.20 : 13,038,355.20 = 3,301,719.20 : x
  2. Step 2: Convert to fraction form
    8,694,861.20/13,038,355.20 = 3,301,719.20/x
  3. Step 3: Cross multiply
    8,694,861.20x = 13,038,355.20 × 3,301,719.20
  4. Step 4: Simplify right side
    8,694,861.20x = 43,048,987,700,259.84
  5. Step 5: Solve for x
    x = 43,048,987,700,259.84/8,694,861.20
  6. Step 6: Final answer
    x = 4,951,083.95

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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.