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Finding the Fourth Proportional to 4,966.64, 7,448.28 and 1,678.88

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Solution

The fourth proportional to 4,966.64, 7,448.28 and 1,678.88 is: 2,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,966.64 : 7,448.28 = 1,678.88 : x
  2. Step 2: Convert to fraction form
    4,966.64/7,448.28 = 1,678.88/x
  3. Step 3: Cross multiply
    4,966.64x = 7,448.28 × 1,678.88
  4. Step 4: Simplify right side
    4,966.64x = 12,504,768.33
  5. Step 5: Solve for x
    x = 12,504,768.33/4,966.64
  6. Step 6: Final answer
    x = 2,517.75

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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.