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Finding the Fourth Proportional to 17,920.84, 26,746.99 and 17,625.21

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Solution

The fourth proportional to 17,920.84, 26,746.99 and 17,625.21 is: 26,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.84 : 26,746.99 = 17,625.21 : x
  2. Step 2: Convert to fraction form
    17,920.84/26,746.99 = 17,625.21/x
  3. Step 3: Cross multiply
    17,920.84x = 26,746.99 × 17,625.21
  4. Step 4: Simplify right side
    17,920.84x = 471,421,227.49
  5. Step 5: Solve for x
    x = 471,421,227.49/17,920.84
  6. Step 6: Final answer
    x = 26,305.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.