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Finding the Fourth Proportional to 62,938, 86,854.44 and 34,643.56

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Solution

The fourth proportional to 62,938, 86,854.44 and 34,643.56 is: 47,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,938 : 86,854.44 = 34,643.56 : x
  2. Step 2: Convert to fraction form
    62,938/86,854.44 = 34,643.56/x
  3. Step 3: Cross multiply
    62,938x = 86,854.44 × 34,643.56
  4. Step 4: Simplify right side
    62,938x = 3,008,947,003.41
  5. Step 5: Solve for x
    x = 3,008,947,003.41/62,938
  6. Step 6: Final answer
    x = 47,808.11

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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.