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Finding the Fourth Proportional to 6,640,073.40, 9,952,236.90 and 5,962,978.20

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Solution

The fourth proportional to 6,640,073.40, 9,952,236.90 and 5,962,978.20 is: 8,937,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,073.40 : 9,952,236.90 = 5,962,978.20 : x
  2. Step 2: Convert to fraction form
    6,640,073.40/9,952,236.90 = 5,962,978.20/x
  3. Step 3: Cross multiply
    6,640,073.40x = 9,952,236.90 × 5,962,978.20
  4. Step 4: Simplify right side
    6,640,073.40x = 59,344,971,675,935.59
  5. Step 5: Solve for x
    x = 59,344,971,675,935.59/6,640,073.40
  6. Step 6: Final answer
    x = 8,937,396.94

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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.