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Finding the Fourth Proportional to 34,994.91, 48,290.29 and 19,887.81

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Solution

The fourth proportional to 34,994.91, 48,290.29 and 19,887.81 is: 27,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,994.91 : 48,290.29 = 19,887.81 : x
  2. Step 2: Convert to fraction form
    34,994.91/48,290.29 = 19,887.81/x
  3. Step 3: Cross multiply
    34,994.91x = 48,290.29 × 19,887.81
  4. Step 4: Simplify right side
    34,994.91x = 960,388,112.36
  5. Step 5: Solve for x
    x = 960,388,112.36/34,994.91
  6. Step 6: Final answer
    x = 27,443.65

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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.