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Finding the Fourth Proportional to 61,299.66, 91,947.60 and 16,929.12

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Solution

The fourth proportional to 61,299.66, 91,947.60 and 16,929.12 is: 25,393.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,299.66 : 91,947.60 = 16,929.12 : x
  2. Step 2: Convert to fraction form
    61,299.66/91,947.60 = 16,929.12/x
  3. Step 3: Cross multiply
    61,299.66x = 91,947.60 × 16,929.12
  4. Step 4: Simplify right side
    61,299.66x = 1,556,591,954.11
  5. Step 5: Solve for x
    x = 1,556,591,954.11/61,299.66
  6. Step 6: Final answer
    x = 25,393.16

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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.