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Finding the Fourth Proportional to 61,340.45, 84,625.83 and 34,476.80

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Solution

The fourth proportional to 61,340.45, 84,625.83 and 34,476.80 is: 47,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,340.45 : 84,625.83 = 34,476.80 : x
  2. Step 2: Convert to fraction form
    61,340.45/84,625.83 = 34,476.80/x
  3. Step 3: Cross multiply
    61,340.45x = 84,625.83 × 34,476.80
  4. Step 4: Simplify right side
    61,340.45x = 2,917,627,392.61
  5. Step 5: Solve for x
    x = 2,917,627,392.61/61,340.45
  6. Step 6: Final answer
    x = 47,564.50

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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.