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Finding the Fourth Proportional to 6,878.36, 9,492.17 and 3,734.55

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Solution

The fourth proportional to 6,878.36, 9,492.17 and 3,734.55 is: 5,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.36 : 9,492.17 = 3,734.55 : x
  2. Step 2: Convert to fraction form
    6,878.36/9,492.17 = 3,734.55/x
  3. Step 3: Cross multiply
    6,878.36x = 9,492.17 × 3,734.55
  4. Step 4: Simplify right side
    6,878.36x = 35,448,964.80
  5. Step 5: Solve for x
    x = 35,448,964.80/6,878.36
  6. Step 6: Final answer
    x = 5,153.70

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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.