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Finding the Fourth Proportional to 5,359.92, 8,039.92 and 1,662.08

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Solution

The fourth proportional to 5,359.92, 8,039.92 and 1,662.08 is: 2,493.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.92 : 8,039.92 = 1,662.08 : x
  2. Step 2: Convert to fraction form
    5,359.92/8,039.92 = 1,662.08/x
  3. Step 3: Cross multiply
    5,359.92x = 8,039.92 × 1,662.08
  4. Step 4: Simplify right side
    5,359.92x = 13,362,990.23
  5. Step 5: Solve for x
    x = 13,362,990.23/5,359.92
  6. Step 6: Final answer
    x = 2,493.13

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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.