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Finding the Fourth Proportional to 17,605.52, 26,420.16 and 7,747.76

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Solution

The fourth proportional to 17,605.52, 26,420.16 and 7,747.76 is: 11,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.52 : 26,420.16 = 7,747.76 : x
  2. Step 2: Convert to fraction form
    17,605.52/26,420.16 = 7,747.76/x
  3. Step 3: Cross multiply
    17,605.52x = 26,420.16 × 7,747.76
  4. Step 4: Simplify right side
    17,605.52x = 204,697,058.84
  5. Step 5: Solve for x
    x = 204,697,058.84/17,605.52
  6. Step 6: Final answer
    x = 11,626.87

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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.