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Finding the Fourth Proportional to 2,776.38, 4,164.48 and 927.51

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Solution

The fourth proportional to 2,776.38, 4,164.48 and 927.51 is: 1,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.38 : 4,164.48 = 927.51 : x
  2. Step 2: Convert to fraction form
    2,776.38/4,164.48 = 927.51/x
  3. Step 3: Cross multiply
    2,776.38x = 4,164.48 × 927.51
  4. Step 4: Simplify right side
    2,776.38x = 3,862,596.84
  5. Step 5: Solve for x
    x = 3,862,596.84/2,776.38
  6. Step 6: Final answer
    x = 1,391.23

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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.