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Finding the Fourth Proportional to 62,783.68, 86,642.56 and 34,490.56

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Solution

The fourth proportional to 62,783.68, 86,642.56 and 34,490.56 is: 47,597.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,783.68 : 86,642.56 = 34,490.56 : x
  2. Step 2: Convert to fraction form
    62,783.68/86,642.56 = 34,490.56/x
  3. Step 3: Cross multiply
    62,783.68x = 86,642.56 × 34,490.56
  4. Step 4: Simplify right side
    62,783.68x = 2,988,350,414.23
  5. Step 5: Solve for x
    x = 2,988,350,414.23/62,783.68
  6. Step 6: Final answer
    x = 47,597.57

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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.