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Finding the Fourth Proportional to 5,776.55, 7,979.54 and 4,466.78

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Solution

The fourth proportional to 5,776.55, 7,979.54 and 4,466.78 is: 6,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.55 : 7,979.54 = 4,466.78 : x
  2. Step 2: Convert to fraction form
    5,776.55/7,979.54 = 4,466.78/x
  3. Step 3: Cross multiply
    5,776.55x = 7,979.54 × 4,466.78
  4. Step 4: Simplify right side
    5,776.55x = 35,642,849.68
  5. Step 5: Solve for x
    x = 35,642,849.68/5,776.55
  6. Step 6: Final answer
    x = 6,170.27

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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.