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Finding the Fourth Proportional to 7,874,395.72, 10,866,663.84 and 4,252,723.72

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Solution

The fourth proportional to 7,874,395.72, 10,866,663.84 and 4,252,723.72 is: 5,868,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874,395.72 : 10,866,663.84 = 4,252,723.72 : x
  2. Step 2: Convert to fraction form
    7,874,395.72/10,866,663.84 = 4,252,723.72/x
  3. Step 3: Cross multiply
    7,874,395.72x = 10,866,663.84 × 4,252,723.72
  4. Step 4: Simplify right side
    7,874,395.72x = 46,212,919,069,634.28
  5. Step 5: Solve for x
    x = 46,212,919,069,634.28/7,874,395.72
  6. Step 6: Final answer
    x = 5,868,757.52

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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.