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Finding the Fourth Proportional to 22,785.87, 34,179.84 and 6,989.76

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Solution

The fourth proportional to 22,785.87, 34,179.84 and 6,989.76 is: 10,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.87 : 34,179.84 = 6,989.76 : x
  2. Step 2: Convert to fraction form
    22,785.87/34,179.84 = 6,989.76/x
  3. Step 3: Cross multiply
    22,785.87x = 34,179.84 × 6,989.76
  4. Step 4: Simplify right side
    22,785.87x = 238,908,878.44
  5. Step 5: Solve for x
    x = 238,908,878.44/22,785.87
  6. Step 6: Final answer
    x = 10,484.96

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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.