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Finding the Fourth Proportional to 5,682.71, 8,508.85 and 5,355.16

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Solution

The fourth proportional to 5,682.71, 8,508.85 and 5,355.16 is: 8,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.71 : 8,508.85 = 5,355.16 : x
  2. Step 2: Convert to fraction form
    5,682.71/8,508.85 = 5,355.16/x
  3. Step 3: Cross multiply
    5,682.71x = 8,508.85 × 5,355.16
  4. Step 4: Simplify right side
    5,682.71x = 45,566,266.37
  5. Step 5: Solve for x
    x = 45,566,266.37/5,682.71
  6. Step 6: Final answer
    x = 8,018.41

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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.