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Finding the Fourth Proportional to 15,998.70, 23,990.52 and 5,465.90

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Solution

The fourth proportional to 15,998.70, 23,990.52 and 5,465.90 is: 8,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.70 : 23,990.52 = 5,465.90 : x
  2. Step 2: Convert to fraction form
    15,998.70/23,990.52 = 5,465.90/x
  3. Step 3: Cross multiply
    15,998.70x = 23,990.52 × 5,465.90
  4. Step 4: Simplify right side
    15,998.70x = 131,129,783.27
  5. Step 5: Solve for x
    x = 131,129,783.27/15,998.70
  6. Step 6: Final answer
    x = 8,196.28

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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.