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Finding the Fourth Proportional to 5,769.72, 7,955.55 and 4,927.86

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Solution

The fourth proportional to 5,769.72, 7,955.55 and 4,927.86 is: 6,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.72 : 7,955.55 = 4,927.86 : x
  2. Step 2: Convert to fraction form
    5,769.72/7,955.55 = 4,927.86/x
  3. Step 3: Cross multiply
    5,769.72x = 7,955.55 × 4,927.86
  4. Step 4: Simplify right side
    5,769.72x = 39,203,836.62
  5. Step 5: Solve for x
    x = 39,203,836.62/5,769.72
  6. Step 6: Final answer
    x = 6,794.76

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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.