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Finding the Fourth Proportional to 61,499.81, 92,249.73 and 19,946.81

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Solution

The fourth proportional to 61,499.81, 92,249.73 and 19,946.81 is: 29,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,499.81 : 92,249.73 = 19,946.81 : x
  2. Step 2: Convert to fraction form
    61,499.81/92,249.73 = 19,946.81/x
  3. Step 3: Cross multiply
    61,499.81x = 92,249.73 × 19,946.81
  4. Step 4: Simplify right side
    61,499.81x = 1,840,088,067.49
  5. Step 5: Solve for x
    x = 1,840,088,067.49/61,499.81
  6. Step 6: Final answer
    x = 29,920.22

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.