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Finding the Fourth Proportional to 7,900.56, 10,902.24 and 4,363.92

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Solution

The fourth proportional to 7,900.56, 10,902.24 and 4,363.92 is: 6,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.56 : 10,902.24 = 4,363.92 : x
  2. Step 2: Convert to fraction form
    7,900.56/10,902.24 = 4,363.92/x
  3. Step 3: Cross multiply
    7,900.56x = 10,902.24 × 4,363.92
  4. Step 4: Simplify right side
    7,900.56x = 47,576,503.18
  5. Step 5: Solve for x
    x = 47,576,503.18/7,900.56
  6. Step 6: Final answer
    x = 6,021.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.