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Finding the Fourth Proportional to 5,408,974.80, 8,097,715.80 and 5,251,510.80

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Solution

The fourth proportional to 5,408,974.80, 8,097,715.80 and 5,251,510.80 is: 7,861,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408,974.80 : 8,097,715.80 = 5,251,510.80 : x
  2. Step 2: Convert to fraction form
    5,408,974.80/8,097,715.80 = 5,251,510.80/x
  3. Step 3: Cross multiply
    5,408,974.80x = 8,097,715.80 × 5,251,510.80
  4. Step 4: Simplify right side
    5,408,974.80x = 42,525,241,979,030.64
  5. Step 5: Solve for x
    x = 42,525,241,979,030.64/5,408,974.80
  6. Step 6: Final answer
    x = 7,861,978.20

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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.