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Finding the Fourth Proportional to 17,805.52, 26,709.72 and 6,118.72

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Solution

The fourth proportional to 17,805.52, 26,709.72 and 6,118.72 is: 9,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,805.52 : 26,709.72 = 6,118.72 : x
  2. Step 2: Convert to fraction form
    17,805.52/26,709.72 = 6,118.72/x
  3. Step 3: Cross multiply
    17,805.52x = 26,709.72 × 6,118.72
  4. Step 4: Simplify right side
    17,805.52x = 163,429,297.96
  5. Step 5: Solve for x
    x = 163,429,297.96/17,805.52
  6. Step 6: Final answer
    x = 9,178.57

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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.