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Finding the Fourth Proportional to 3,792.88, 5,690.28 and 1,056.88

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Solution

The fourth proportional to 3,792.88, 5,690.28 and 1,056.88 is: 1,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.88 : 5,690.28 = 1,056.88 : x
  2. Step 2: Convert to fraction form
    3,792.88/5,690.28 = 1,056.88/x
  3. Step 3: Cross multiply
    3,792.88x = 5,690.28 × 1,056.88
  4. Step 4: Simplify right side
    3,792.88x = 6,013,909.39
  5. Step 5: Solve for x
    x = 6,013,909.39/3,792.88
  6. Step 6: Final answer
    x = 1,585.58

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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.