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Finding the Fourth Proportional to 7,419.92, 10,237.92 and 4,274.96

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Solution

The fourth proportional to 7,419.92, 10,237.92 and 4,274.96 is: 5,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.92 : 10,237.92 = 4,274.96 : x
  2. Step 2: Convert to fraction form
    7,419.92/10,237.92 = 4,274.96/x
  3. Step 3: Cross multiply
    7,419.92x = 10,237.92 × 4,274.96
  4. Step 4: Simplify right side
    7,419.92x = 43,766,698.48
  5. Step 5: Solve for x
    x = 43,766,698.48/7,419.92
  6. Step 6: Final answer
    x = 5,898.54

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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.