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Finding the Fourth Proportional to 6,995,462.80, 9,653,483.76 and 3,897,826.08

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Solution

The fourth proportional to 6,995,462.80, 9,653,483.76 and 3,897,826.08 is: 5,378,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995,462.80 : 9,653,483.76 = 3,897,826.08 : x
  2. Step 2: Convert to fraction form
    6,995,462.80/9,653,483.76 = 3,897,826.08/x
  3. Step 3: Cross multiply
    6,995,462.80x = 9,653,483.76 × 3,897,826.08
  4. Step 4: Simplify right side
    6,995,462.80x = 37,627,600,762,584.46
  5. Step 5: Solve for x
    x = 37,627,600,762,584.46/6,995,462.80
  6. Step 6: Final answer
    x = 5,378,857.96

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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.