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Finding the Fourth Proportional to 15,999.14, 23,966.57 and 7,969.70

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Solution

The fourth proportional to 15,999.14, 23,966.57 and 7,969.70 is: 11,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.14 : 23,966.57 = 7,969.70 : x
  2. Step 2: Convert to fraction form
    15,999.14/23,966.57 = 7,969.70/x
  3. Step 3: Cross multiply
    15,999.14x = 23,966.57 × 7,969.70
  4. Step 4: Simplify right side
    15,999.14x = 191,006,452.77
  5. Step 5: Solve for x
    x = 191,006,452.77/15,999.14
  6. Step 6: Final answer
    x = 11,938.54

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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.