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Finding the Fourth Proportional to 19,949.93, 29,924.72 and 7,637.93

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Solution

The fourth proportional to 19,949.93, 29,924.72 and 7,637.93 is: 11,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.93 : 29,924.72 = 7,637.93 : x
  2. Step 2: Convert to fraction form
    19,949.93/29,924.72 = 7,637.93/x
  3. Step 3: Cross multiply
    19,949.93x = 29,924.72 × 7,637.93
  4. Step 4: Simplify right side
    19,949.93x = 228,562,878.44
  5. Step 5: Solve for x
    x = 228,562,878.44/19,949.93
  6. Step 6: Final answer
    x = 11,456.83

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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.