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Finding the Fourth Proportional to 8,568.18, 11,826.06 and 5,578.81

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Solution

The fourth proportional to 8,568.18, 11,826.06 and 5,578.81 is: 7,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.18 : 11,826.06 = 5,578.81 : x
  2. Step 2: Convert to fraction form
    8,568.18/11,826.06 = 5,578.81/x
  3. Step 3: Cross multiply
    8,568.18x = 11,826.06 × 5,578.81
  4. Step 4: Simplify right side
    8,568.18x = 65,975,341.79
  5. Step 5: Solve for x
    x = 65,975,341.79/8,568.18
  6. Step 6: Final answer
    x = 7,700.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.