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Finding the Fourth Proportional to 6,642,276.40, 9,942,419.40 and 4,752,708.40

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Solution

The fourth proportional to 6,642,276.40, 9,942,419.40 and 4,752,708.40 is: 7,114,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,276.40 : 9,942,419.40 = 4,752,708.40 : x
  2. Step 2: Convert to fraction form
    6,642,276.40/9,942,419.40 = 4,752,708.40/x
  3. Step 3: Cross multiply
    6,642,276.40x = 9,942,419.40 × 4,752,708.40
  4. Step 4: Simplify right side
    6,642,276.40x = 47,253,420,198,702.97
  5. Step 5: Solve for x
    x = 47,253,420,198,702.97/6,642,276.40
  6. Step 6: Final answer
    x = 7,114,040.03

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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.