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Finding the Fourth Proportional to 18,754.46, 28,134.49 and 6,907.33

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Solution

The fourth proportional to 18,754.46, 28,134.49 and 6,907.33 is: 10,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.46 : 28,134.49 = 6,907.33 : x
  2. Step 2: Convert to fraction form
    18,754.46/28,134.49 = 6,907.33/x
  3. Step 3: Cross multiply
    18,754.46x = 28,134.49 × 6,907.33
  4. Step 4: Simplify right side
    18,754.46x = 194,334,206.81
  5. Step 5: Solve for x
    x = 194,334,206.81/18,754.46
  6. Step 6: Final answer
    x = 10,362.03

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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.