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Finding the Fourth Proportional to 66,777.62, 100,176.14 and 20,034.14

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Solution

The fourth proportional to 66,777.62, 100,176.14 and 20,034.14 is: 30,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,777.62 : 100,176.14 = 20,034.14 : x
  2. Step 2: Convert to fraction form
    66,777.62/100,176.14 = 20,034.14/x
  3. Step 3: Cross multiply
    66,777.62x = 100,176.14 × 20,034.14
  4. Step 4: Simplify right side
    66,777.62x = 2,006,942,362.62
  5. Step 5: Solve for x
    x = 2,006,942,362.62/66,777.62
  6. Step 6: Final answer
    x = 30,054.12

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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.