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Finding the Fourth Proportional to 68,904.97, 103,386.70 and 33,392.72

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Solution

The fourth proportional to 68,904.97, 103,386.70 and 33,392.72 is: 50,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904.97 : 103,386.70 = 33,392.72 : x
  2. Step 2: Convert to fraction form
    68,904.97/103,386.70 = 33,392.72/x
  3. Step 3: Cross multiply
    68,904.97x = 103,386.70 × 33,392.72
  4. Step 4: Simplify right side
    68,904.97x = 3,452,362,910.10
  5. Step 5: Solve for x
    x = 3,452,362,910.10/68,904.97
  6. Step 6: Final answer
    x = 50,103.25

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1.5x scale

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.