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Finding the Fourth Proportional to 7,133.70, 10,699.74 and 2,750.79

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Solution

The fourth proportional to 7,133.70, 10,699.74 and 2,750.79 is: 4,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.70 : 10,699.74 = 2,750.79 : x
  2. Step 2: Convert to fraction form
    7,133.70/10,699.74 = 2,750.79/x
  3. Step 3: Cross multiply
    7,133.70x = 10,699.74 × 2,750.79
  4. Step 4: Simplify right side
    7,133.70x = 29,432,737.79
  5. Step 5: Solve for x
    x = 29,432,737.79/7,133.70
  6. Step 6: Final answer
    x = 4,125.87

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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.