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Finding the Fourth Proportional to 19,717.76, 29,576.28 and 5,867.12

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Solution

The fourth proportional to 19,717.76, 29,576.28 and 5,867.12 is: 8,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.76 : 29,576.28 = 5,867.12 : x
  2. Step 2: Convert to fraction form
    19,717.76/29,576.28 = 5,867.12/x
  3. Step 3: Cross multiply
    19,717.76x = 29,576.28 × 5,867.12
  4. Step 4: Simplify right side
    19,717.76x = 173,527,583.91
  5. Step 5: Solve for x
    x = 173,527,583.91/19,717.76
  6. Step 6: Final answer
    x = 8,800.57

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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.