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Finding the Fourth Proportional to 5,643,687.52, 7,788,311.16 and 3,065,411.38

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Solution

The fourth proportional to 5,643,687.52, 7,788,311.16 and 3,065,411.38 is: 4,230,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643,687.52 : 7,788,311.16 = 3,065,411.38 : x
  2. Step 2: Convert to fraction form
    5,643,687.52/7,788,311.16 = 3,065,411.38/x
  3. Step 3: Cross multiply
    5,643,687.52x = 7,788,311.16 × 3,065,411.38
  4. Step 4: Simplify right side
    5,643,687.52x = 23,874,377,660,845
  5. Step 5: Solve for x
    x = 23,874,377,660,845/5,643,687.52
  6. Step 6: Final answer
    x = 4,230,279.86

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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.