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Finding the Fourth Proportional to 17,446.72, 26,170.68 and 6,918.74

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Solution

The fourth proportional to 17,446.72, 26,170.68 and 6,918.74 is: 10,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,446.72 : 26,170.68 = 6,918.74 : x
  2. Step 2: Convert to fraction form
    17,446.72/26,170.68 = 6,918.74/x
  3. Step 3: Cross multiply
    17,446.72x = 26,170.68 × 6,918.74
  4. Step 4: Simplify right side
    17,446.72x = 181,068,130.54
  5. Step 5: Solve for x
    x = 181,068,130.54/17,446.72
  6. Step 6: Final answer
    x = 10,378.35

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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.