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Finding the Fourth Proportional to 17,909.94, 26,861.45 and 17,020.90

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Solution

The fourth proportional to 17,909.94, 26,861.45 and 17,020.90 is: 25,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.94 : 26,861.45 = 17,020.90 : x
  2. Step 2: Convert to fraction form
    17,909.94/26,861.45 = 17,020.90/x
  3. Step 3: Cross multiply
    17,909.94x = 26,861.45 × 17,020.90
  4. Step 4: Simplify right side
    17,909.94x = 457,206,054.31
  5. Step 5: Solve for x
    x = 457,206,054.31/17,909.94
  6. Step 6: Final answer
    x = 25,528.06

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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.