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Finding the Fourth Proportional to 19,994.69, 27,592.89 and 11,042.42

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Solution

The fourth proportional to 19,994.69, 27,592.89 and 11,042.42 is: 15,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.69 : 27,592.89 = 11,042.42 : x
  2. Step 2: Convert to fraction form
    19,994.69/27,592.89 = 11,042.42/x
  3. Step 3: Cross multiply
    19,994.69x = 27,592.89 × 11,042.42
  4. Step 4: Simplify right side
    19,994.69x = 304,692,225.18
  5. Step 5: Solve for x
    x = 304,692,225.18/19,994.69
  6. Step 6: Final answer
    x = 15,238.66

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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.