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Finding the Fourth Proportional to 8,793,787.68, 13,189,359.60 and 5,152,189.68

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Solution

The fourth proportional to 8,793,787.68, 13,189,359.60 and 5,152,189.68 is: 7,727,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793,787.68 : 13,189,359.60 = 5,152,189.68 : x
  2. Step 2: Convert to fraction form
    8,793,787.68/13,189,359.60 = 5,152,189.68/x
  3. Step 3: Cross multiply
    8,793,787.68x = 13,189,359.60 × 5,152,189.68
  4. Step 4: Simplify right side
    8,793,787.68x = 67,954,082,416,928.92
  5. Step 5: Solve for x
    x = 67,954,082,416,928.92/8,793,787.68
  6. Step 6: Final answer
    x = 7,727,510.02

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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.