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Finding the Fourth Proportional to 25,991.96, 38,981.01 and 7,270.83

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Solution

The fourth proportional to 25,991.96, 38,981.01 and 7,270.83 is: 10,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.96 : 38,981.01 = 7,270.83 : x
  2. Step 2: Convert to fraction form
    25,991.96/38,981.01 = 7,270.83/x
  3. Step 3: Cross multiply
    25,991.96x = 38,981.01 × 7,270.83
  4. Step 4: Simplify right side
    25,991.96x = 283,424,296.94
  5. Step 5: Solve for x
    x = 283,424,296.94/25,991.96
  6. Step 6: Final answer
    x = 10,904.31

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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.