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Finding the Fourth Proportional to 3,747,698.52, 5,171,781.06 and 2,028,781.32

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Solution

The fourth proportional to 3,747,698.52, 5,171,781.06 and 2,028,781.32 is: 2,799,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747,698.52 : 5,171,781.06 = 2,028,781.32 : x
  2. Step 2: Convert to fraction form
    3,747,698.52/5,171,781.06 = 2,028,781.32/x
  3. Step 3: Cross multiply
    3,747,698.52x = 5,171,781.06 × 2,028,781.32
  4. Step 4: Simplify right side
    3,747,698.52x = 10,492,412,805,657.80
  5. Step 5: Solve for x
    x = 10,492,412,805,657.80/3,747,698.52
  6. Step 6: Final answer
    x = 2,799,695.00

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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.