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Finding the Fourth Proportional to 8,682.98, 13,019.00 and 5,718.23

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Solution

The fourth proportional to 8,682.98, 13,019.00 and 5,718.23 is: 8,573.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.98 : 13,019.00 = 5,718.23 : x
  2. Step 2: Convert to fraction form
    8,682.98/13,019.00 = 5,718.23/x
  3. Step 3: Cross multiply
    8,682.98x = 13,019.00 × 5,718.23
  4. Step 4: Simplify right side
    8,682.98x = 74,445,542.68
  5. Step 5: Solve for x
    x = 74,445,542.68/8,682.98
  6. Step 6: Final answer
    x = 8,573.74

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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.