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Finding the Fourth Proportional to 3,792.75, 5,689.14 and 1,056.75

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Solution

The fourth proportional to 3,792.75, 5,689.14 and 1,056.75 is: 1,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.75 : 5,689.14 = 1,056.75 : x
  2. Step 2: Convert to fraction form
    3,792.75/5,689.14 = 1,056.75/x
  3. Step 3: Cross multiply
    3,792.75x = 5,689.14 × 1,056.75
  4. Step 4: Simplify right side
    3,792.75x = 6,011,998.70
  5. Step 5: Solve for x
    x = 6,011,998.70/3,792.75
  6. Step 6: Final answer
    x = 1,585.13

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Half scale
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Double scale
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Similar ratio
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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.