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Finding the Fourth Proportional to 5,259.66, 7,889.49 and 4,399.98

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Solution

The fourth proportional to 5,259.66, 7,889.49 and 4,399.98 is: 6,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.66 : 7,889.49 = 4,399.98 : x
  2. Step 2: Convert to fraction form
    5,259.66/7,889.49 = 4,399.98/x
  3. Step 3: Cross multiply
    5,259.66x = 7,889.49 × 4,399.98
  4. Step 4: Simplify right side
    5,259.66x = 34,713,598.21
  5. Step 5: Solve for x
    x = 34,713,598.21/5,259.66
  6. Step 6: Final answer
    x = 6,599.97

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Similar ratio
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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.