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Finding the Fourth Proportional to 69,856.70, 104,785.08 and 23,109.57

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Solution

The fourth proportional to 69,856.70, 104,785.08 and 23,109.57 is: 34,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,856.70 : 104,785.08 = 23,109.57 : x
  2. Step 2: Convert to fraction form
    69,856.70/104,785.08 = 23,109.57/x
  3. Step 3: Cross multiply
    69,856.70x = 104,785.08 × 23,109.57
  4. Step 4: Simplify right side
    69,856.70x = 2,421,538,083.44
  5. Step 5: Solve for x
    x = 2,421,538,083.44/69,856.70
  6. Step 6: Final answer
    x = 34,664.37

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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.