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Finding the Fourth Proportional to 6,922.70, 10,387.70 and 4,154.93

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Solution

The fourth proportional to 6,922.70, 10,387.70 and 4,154.93 is: 6,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.70 : 10,387.70 = 4,154.93 : x
  2. Step 2: Convert to fraction form
    6,922.70/10,387.70 = 4,154.93/x
  3. Step 3: Cross multiply
    6,922.70x = 10,387.70 × 4,154.93
  4. Step 4: Simplify right side
    6,922.70x = 43,160,166.36
  5. Step 5: Solve for x
    x = 43,160,166.36/6,922.70
  6. Step 6: Final answer
    x = 6,234.59

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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.