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Finding the Fourth Proportional to 18,894.84, 26,042.22 and 14,170.92

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Solution

The fourth proportional to 18,894.84, 26,042.22 and 14,170.92 is: 19,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.84 : 26,042.22 = 14,170.92 : x
  2. Step 2: Convert to fraction form
    18,894.84/26,042.22 = 14,170.92/x
  3. Step 3: Cross multiply
    18,894.84x = 26,042.22 × 14,170.92
  4. Step 4: Simplify right side
    18,894.84x = 369,042,216.24
  5. Step 5: Solve for x
    x = 369,042,216.24/18,894.84
  6. Step 6: Final answer
    x = 19,531.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.