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Finding the Fourth Proportional to 17,705.60, 26,523.52 and 9,890.56

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Solution

The fourth proportional to 17,705.60, 26,523.52 and 9,890.56 is: 14,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,705.60 : 26,523.52 = 9,890.56 : x
  2. Step 2: Convert to fraction form
    17,705.60/26,523.52 = 9,890.56/x
  3. Step 3: Cross multiply
    17,705.60x = 26,523.52 × 9,890.56
  4. Step 4: Simplify right side
    17,705.60x = 262,332,465.97
  5. Step 5: Solve for x
    x = 262,332,465.97/17,705.60
  6. Step 6: Final answer
    x = 14,816.36

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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.