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Finding the Fourth Proportional to 6,643,515.10, 9,965,272.65 and 4,250,062.30

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Solution

The fourth proportional to 6,643,515.10, 9,965,272.65 and 4,250,062.30 is: 6,375,093.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,515.10 : 9,965,272.65 = 4,250,062.30 : x
  2. Step 2: Convert to fraction form
    6,643,515.10/9,965,272.65 = 4,250,062.30/x
  3. Step 3: Cross multiply
    6,643,515.10x = 9,965,272.65 × 4,250,062.30
  4. Step 4: Simplify right side
    6,643,515.10x = 42,353,029,598,986.09
  5. Step 5: Solve for x
    x = 42,353,029,598,986.09/6,643,515.10
  6. Step 6: Final answer
    x = 6,375,093.45

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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.