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Finding the Fourth Proportional to 5,761,506.31, 7,941,644.41 and 3,900,334.89

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Solution

The fourth proportional to 5,761,506.31, 7,941,644.41 and 3,900,334.89 is: 5,376,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761,506.31 : 7,941,644.41 = 3,900,334.89 : x
  2. Step 2: Convert to fraction form
    5,761,506.31/7,941,644.41 = 3,900,334.89/x
  3. Step 3: Cross multiply
    5,761,506.31x = 7,941,644.41 × 3,900,334.89
  4. Step 4: Simplify right side
    5,761,506.31x = 30,975,072,776,296.46
  5. Step 5: Solve for x
    x = 30,975,072,776,296.46/5,761,506.31
  6. Step 6: Final answer
    x = 5,376,210.86

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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.