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Finding the Fourth Proportional to 4,874.42, 6,724.54 and 3,385.92

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Solution

The fourth proportional to 4,874.42, 6,724.54 and 3,385.92 is: 4,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.42 : 6,724.54 = 3,385.92 : x
  2. Step 2: Convert to fraction form
    4,874.42/6,724.54 = 3,385.92/x
  3. Step 3: Cross multiply
    4,874.42x = 6,724.54 × 3,385.92
  4. Step 4: Simplify right side
    4,874.42x = 22,768,754.48
  5. Step 5: Solve for x
    x = 22,768,754.48/4,874.42
  6. Step 6: Final answer
    x = 4,671.07

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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.