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Finding the Fourth Proportional to 3,472.64, 4,792.32 and 2,074.88

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Solution

The fourth proportional to 3,472.64, 4,792.32 and 2,074.88 is: 2,863.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.64 : 4,792.32 = 2,074.88 : x
  2. Step 2: Convert to fraction form
    3,472.64/4,792.32 = 2,074.88/x
  3. Step 3: Cross multiply
    3,472.64x = 4,792.32 × 2,074.88
  4. Step 4: Simplify right side
    3,472.64x = 9,943,488.92
  5. Step 5: Solve for x
    x = 9,943,488.92/3,472.64
  6. Step 6: Final answer
    x = 2,863.38

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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.