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Finding the Fourth Proportional to 18,907.53, 26,091.21 and 10,948.37

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Solution

The fourth proportional to 18,907.53, 26,091.21 and 10,948.37 is: 15,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.53 : 26,091.21 = 10,948.37 : x
  2. Step 2: Convert to fraction form
    18,907.53/26,091.21 = 10,948.37/x
  3. Step 3: Cross multiply
    18,907.53x = 26,091.21 × 10,948.37
  4. Step 4: Simplify right side
    18,907.53x = 285,656,131.43
  5. Step 5: Solve for x
    x = 285,656,131.43/18,907.53
  6. Step 6: Final answer
    x = 15,108.06

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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.