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Finding the Fourth Proportional to 3,959,381.68, 5,941,319.01 and 2,137,722.18

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Solution

The fourth proportional to 3,959,381.68, 5,941,319.01 and 2,137,722.18 is: 3,207,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959,381.68 : 5,941,319.01 = 2,137,722.18 : x
  2. Step 2: Convert to fraction form
    3,959,381.68/5,941,319.01 = 2,137,722.18/x
  3. Step 3: Cross multiply
    3,959,381.68x = 5,941,319.01 × 2,137,722.18
  4. Step 4: Simplify right side
    3,959,381.68x = 12,700,889,426,132.64
  5. Step 5: Solve for x
    x = 12,700,889,426,132.64/3,959,381.68
  6. Step 6: Final answer
    x = 3,207,796.18

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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.