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Finding the Fourth Proportional to 6,995,473.68, 9,653,624.34 and 3,812,928.55

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Solution

The fourth proportional to 6,995,473.68, 9,653,624.34 and 3,812,928.55 is: 5,261,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995,473.68 : 9,653,624.34 = 3,812,928.55 : x
  2. Step 2: Convert to fraction form
    6,995,473.68/9,653,624.34 = 3,812,928.55/x
  3. Step 3: Cross multiply
    6,995,473.68x = 9,653,624.34 × 3,812,928.55
  4. Step 4: Simplify right side
    6,995,473.68x = 36,808,579,871,517.08
  5. Step 5: Solve for x
    x = 36,808,579,871,517.08/6,995,473.68
  6. Step 6: Final answer
    x = 5,261,770.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.