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Finding the Fourth Proportional to 61,963.71, 92,940.75 and 19,848.17

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Solution

The fourth proportional to 61,963.71, 92,940.75 and 19,848.17 is: 29,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.71 : 92,940.75 = 19,848.17 : x
  2. Step 2: Convert to fraction form
    61,963.71/92,940.75 = 19,848.17/x
  3. Step 3: Cross multiply
    61,963.71x = 92,940.75 × 19,848.17
  4. Step 4: Simplify right side
    61,963.71x = 1,844,703,341.22
  5. Step 5: Solve for x
    x = 1,844,703,341.22/61,963.71
  6. Step 6: Final answer
    x = 29,770.71

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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.