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Finding the Fourth Proportional to 3,708.75, 5,118.08 and 2,052.75

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Solution

The fourth proportional to 3,708.75, 5,118.08 and 2,052.75 is: 2,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.75 : 5,118.08 = 2,052.75 : x
  2. Step 2: Convert to fraction form
    3,708.75/5,118.08 = 2,052.75/x
  3. Step 3: Cross multiply
    3,708.75x = 5,118.08 × 2,052.75
  4. Step 4: Simplify right side
    3,708.75x = 10,506,128.46
  5. Step 5: Solve for x
    x = 10,506,128.46/3,708.75
  6. Step 6: Final answer
    x = 2,832.80

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Half scale
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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.