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Finding the Fourth Proportional to 18,051.72, 27,064.86 and 6,949.08

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Solution

The fourth proportional to 18,051.72, 27,064.86 and 6,949.08 is: 10,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.72 : 27,064.86 = 6,949.08 : x
  2. Step 2: Convert to fraction form
    18,051.72/27,064.86 = 6,949.08/x
  3. Step 3: Cross multiply
    18,051.72x = 27,064.86 × 6,949.08
  4. Step 4: Simplify right side
    18,051.72x = 188,075,877.33
  5. Step 5: Solve for x
    x = 188,075,877.33/18,051.72
  6. Step 6: Final answer
    x = 10,418.72

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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.