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Finding the Fourth Proportional to 5,637.99, 8,456.08 and 1,889.83

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Solution

The fourth proportional to 5,637.99, 8,456.08 and 1,889.83 is: 2,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.99 : 8,456.08 = 1,889.83 : x
  2. Step 2: Convert to fraction form
    5,637.99/8,456.08 = 1,889.83/x
  3. Step 3: Cross multiply
    5,637.99x = 8,456.08 × 1,889.83
  4. Step 4: Simplify right side
    5,637.99x = 15,980,553.67
  5. Step 5: Solve for x
    x = 15,980,553.67/5,637.99
  6. Step 6: Final answer
    x = 2,834.44

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Double scale
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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.