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Finding the Fourth Proportional to 61,099.99, 84,321.32 and 34,251.12

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Solution

The fourth proportional to 61,099.99, 84,321.32 and 34,251.12 is: 47,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,099.99 : 84,321.32 = 34,251.12 : x
  2. Step 2: Convert to fraction form
    61,099.99/84,321.32 = 34,251.12/x
  3. Step 3: Cross multiply
    61,099.99x = 84,321.32 × 34,251.12
  4. Step 4: Simplify right side
    61,099.99x = 2,888,099,478.62
  5. Step 5: Solve for x
    x = 2,888,099,478.62/61,099.99
  6. Step 6: Final answer
    x = 47,268.41

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1.5x scale

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.