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Finding the Fourth Proportional to 7,883.66, 10,874.64 and 4,694.84

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Solution

The fourth proportional to 7,883.66, 10,874.64 and 4,694.84 is: 6,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.66 : 10,874.64 = 4,694.84 : x
  2. Step 2: Convert to fraction form
    7,883.66/10,874.64 = 4,694.84/x
  3. Step 3: Cross multiply
    7,883.66x = 10,874.64 × 4,694.84
  4. Step 4: Simplify right side
    7,883.66x = 51,054,694.86
  5. Step 5: Solve for x
    x = 51,054,694.86/7,883.66
  6. Step 6: Final answer
    x = 6,476.01

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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.