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Finding the Fourth Proportional to 70,793.19, 106,186.14 and 18,205.56

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Solution

The fourth proportional to 70,793.19, 106,186.14 and 18,205.56 is: 27,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,793.19 : 106,186.14 = 18,205.56 : x
  2. Step 2: Convert to fraction form
    70,793.19/106,186.14 = 18,205.56/x
  3. Step 3: Cross multiply
    70,793.19x = 106,186.14 × 18,205.56
  4. Step 4: Simplify right side
    70,793.19x = 1,933,178,142.94
  5. Step 5: Solve for x
    x = 1,933,178,142.94/70,793.19
  6. Step 6: Final answer
    x = 27,307.40

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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.