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Finding the Fourth Proportional to 68,716.70, 103,075.05 and 33,724.70

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Solution

The fourth proportional to 68,716.70, 103,075.05 and 33,724.70 is: 50,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.70 : 103,075.05 = 33,724.70 : x
  2. Step 2: Convert to fraction form
    68,716.70/103,075.05 = 33,724.70/x
  3. Step 3: Cross multiply
    68,716.70x = 103,075.05 × 33,724.70
  4. Step 4: Simplify right side
    68,716.70x = 3,476,175,138.74
  5. Step 5: Solve for x
    x = 3,476,175,138.74/68,716.70
  6. Step 6: Final answer
    x = 50,587.05

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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.