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Finding the Fourth Proportional to 5,574.56, 7,695 and 4,785.44

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Solution

The fourth proportional to 5,574.56, 7,695 and 4,785.44 is: 6,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.56 : 7,695 = 4,785.44 : x
  2. Step 2: Convert to fraction form
    5,574.56/7,695 = 4,785.44/x
  3. Step 3: Cross multiply
    5,574.56x = 7,695 × 4,785.44
  4. Step 4: Simplify right side
    5,574.56x = 36,823,960.80
  5. Step 5: Solve for x
    x = 36,823,960.80/5,574.56
  6. Step 6: Final answer
    x = 6,605.72

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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.