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Finding the Fourth Proportional to 17,969.86, 26,958.18 and 6,875.62

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Solution

The fourth proportional to 17,969.86, 26,958.18 and 6,875.62 is: 10,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.86 : 26,958.18 = 6,875.62 : x
  2. Step 2: Convert to fraction form
    17,969.86/26,958.18 = 6,875.62/x
  3. Step 3: Cross multiply
    17,969.86x = 26,958.18 × 6,875.62
  4. Step 4: Simplify right side
    17,969.86x = 185,354,201.57
  5. Step 5: Solve for x
    x = 185,354,201.57/17,969.86
  6. Step 6: Final answer
    x = 10,314.73

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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.