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Finding the Fourth Proportional to 18,377.51, 25,360.83 and 9,994.01

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Solution

The fourth proportional to 18,377.51, 25,360.83 and 9,994.01 is: 13,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.51 : 25,360.83 = 9,994.01 : x
  2. Step 2: Convert to fraction form
    18,377.51/25,360.83 = 9,994.01/x
  3. Step 3: Cross multiply
    18,377.51x = 25,360.83 × 9,994.01
  4. Step 4: Simplify right side
    18,377.51x = 253,456,388.63
  5. Step 5: Solve for x
    x = 253,456,388.63/18,377.51
  6. Step 6: Final answer
    x = 13,791.66

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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.