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Finding the Fourth Proportional to 19,897.25, 27,460.85 and 12,844.17

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Solution

The fourth proportional to 19,897.25, 27,460.85 and 12,844.17 is: 17,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.25 : 27,460.85 = 12,844.17 : x
  2. Step 2: Convert to fraction form
    19,897.25/27,460.85 = 12,844.17/x
  3. Step 3: Cross multiply
    19,897.25x = 27,460.85 × 12,844.17
  4. Step 4: Simplify right side
    19,897.25x = 352,711,761.52
  5. Step 5: Solve for x
    x = 352,711,761.52/19,897.25
  6. Step 6: Final answer
    x = 17,726.66

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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.