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Finding the Fourth Proportional to 17,765.49, 26,640.49 and 9,443.51

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Solution

The fourth proportional to 17,765.49, 26,640.49 and 9,443.51 is: 14,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.49 : 26,640.49 = 9,443.51 : x
  2. Step 2: Convert to fraction form
    17,765.49/26,640.49 = 9,443.51/x
  3. Step 3: Cross multiply
    17,765.49x = 26,640.49 × 9,443.51
  4. Step 4: Simplify right side
    17,765.49x = 251,579,733.72
  5. Step 5: Solve for x
    x = 251,579,733.72/17,765.49
  6. Step 6: Final answer
    x = 14,161.15

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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.