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Finding the Fourth Proportional to 17,066.70, 25,600.06 and 5,380.83

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Solution

The fourth proportional to 17,066.70, 25,600.06 and 5,380.83 is: 8,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,066.70 : 25,600.06 = 5,380.83 : x
  2. Step 2: Convert to fraction form
    17,066.70/25,600.06 = 5,380.83/x
  3. Step 3: Cross multiply
    17,066.70x = 25,600.06 × 5,380.83
  4. Step 4: Simplify right side
    17,066.70x = 137,749,557.40
  5. Step 5: Solve for x
    x = 137,749,557.40/17,066.70
  6. Step 6: Final answer
    x = 8,071.25

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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.