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Finding the Fourth Proportional to 2,894.76, 3,994.74 and 1,568.45

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Solution

The fourth proportional to 2,894.76, 3,994.74 and 1,568.45 is: 2,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.76 : 3,994.74 = 1,568.45 : x
  2. Step 2: Convert to fraction form
    2,894.76/3,994.74 = 1,568.45/x
  3. Step 3: Cross multiply
    2,894.76x = 3,994.74 × 1,568.45
  4. Step 4: Simplify right side
    2,894.76x = 6,265,529.98
  5. Step 5: Solve for x
    x = 6,265,529.98/2,894.76
  6. Step 6: Final answer
    x = 2,164.44

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Half scale
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Double 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.