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Finding the Fourth Proportional to 17,080.79, 25,623.81 and 7,220.12

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Solution

The fourth proportional to 17,080.79, 25,623.81 and 7,220.12 is: 10,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,080.79 : 25,623.81 = 7,220.12 : x
  2. Step 2: Convert to fraction form
    17,080.79/25,623.81 = 7,220.12/x
  3. Step 3: Cross multiply
    17,080.79x = 25,623.81 × 7,220.12
  4. Step 4: Simplify right side
    17,080.79x = 185,006,854.94
  5. Step 5: Solve for x
    x = 185,006,854.94/17,080.79
  6. Step 6: Final answer
    x = 10,831.29

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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.