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Finding the Fourth Proportional to 3,114.84, 4,295.13 and 3,068.88

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Solution

The fourth proportional to 3,114.84, 4,295.13 and 3,068.88 is: 4,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.84 : 4,295.13 = 3,068.88 : x
  2. Step 2: Convert to fraction form
    3,114.84/4,295.13 = 3,068.88/x
  3. Step 3: Cross multiply
    3,114.84x = 4,295.13 × 3,068.88
  4. Step 4: Simplify right side
    3,114.84x = 13,181,238.55
  5. Step 5: Solve for x
    x = 13,181,238.55/3,114.84
  6. Step 6: Final answer
    x = 4,231.75

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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.