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Finding the Fourth Proportional to 61,799.92, 92,664.64 and 19,671.84

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Solution

The fourth proportional to 61,799.92, 92,664.64 and 19,671.84 is: 29,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,799.92 : 92,664.64 = 19,671.84 : x
  2. Step 2: Convert to fraction form
    61,799.92/92,664.64 = 19,671.84/x
  3. Step 3: Cross multiply
    61,799.92x = 92,664.64 × 19,671.84
  4. Step 4: Simplify right side
    61,799.92x = 1,822,883,971.74
  5. Step 5: Solve for x
    x = 1,822,883,971.74/61,799.92
  6. Step 6: Final answer
    x = 29,496.54

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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.