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Finding the Fourth Proportional to 23,115.30, 34,652.70 and 15,695.70

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Solution

The fourth proportional to 23,115.30, 34,652.70 and 15,695.70 is: 23,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.30 : 34,652.70 = 15,695.70 : x
  2. Step 2: Convert to fraction form
    23,115.30/34,652.70 = 15,695.70/x
  3. Step 3: Cross multiply
    23,115.30x = 34,652.70 × 15,695.70
  4. Step 4: Simplify right side
    23,115.30x = 543,898,383.39
  5. Step 5: Solve for x
    x = 543,898,383.39/23,115.30
  6. Step 6: Final answer
    x = 23,529.80

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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.