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Finding the Fourth Proportional to 5,616.50, 7,747.84 and 4,555.51

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Solution

The fourth proportional to 5,616.50, 7,747.84 and 4,555.51 is: 6,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.50 : 7,747.84 = 4,555.51 : x
  2. Step 2: Convert to fraction form
    5,616.50/7,747.84 = 4,555.51/x
  3. Step 3: Cross multiply
    5,616.50x = 7,747.84 × 4,555.51
  4. Step 4: Simplify right side
    5,616.50x = 35,295,335.25
  5. Step 5: Solve for x
    x = 35,295,335.25/5,616.50
  6. Step 6: Final answer
    x = 6,284.22

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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.