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Finding the Fourth Proportional to 56,821.73, 78,463.56 and 35,637.53

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Solution

The fourth proportional to 56,821.73, 78,463.56 and 35,637.53 is: 49,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.73 : 78,463.56 = 35,637.53 : x
  2. Step 2: Convert to fraction form
    56,821.73/78,463.56 = 35,637.53/x
  3. Step 3: Cross multiply
    56,821.73x = 78,463.56 × 35,637.53
  4. Step 4: Simplify right side
    56,821.73x = 2,796,247,081.09
  5. Step 5: Solve for x
    x = 2,796,247,081.09/56,821.73
  6. Step 6: Final answer
    x = 49,210.88

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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.