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Finding the Fourth Proportional to 5,598.72, 8,399.99 and 2,478.30

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Solution

The fourth proportional to 5,598.72, 8,399.99 and 2,478.30 is: 3,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598.72 : 8,399.99 = 2,478.30 : x
  2. Step 2: Convert to fraction form
    5,598.72/8,399.99 = 2,478.30/x
  3. Step 3: Cross multiply
    5,598.72x = 8,399.99 × 2,478.30
  4. Step 4: Simplify right side
    5,598.72x = 20,817,695.22
  5. Step 5: Solve for x
    x = 20,817,695.22/5,598.72
  6. Step 6: Final answer
    x = 3,718.30

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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.