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Finding the Fourth Proportional to 17,220.85, 25,828.24 and 4,737.86

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Solution

The fourth proportional to 17,220.85, 25,828.24 and 4,737.86 is: 7,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.85 : 25,828.24 = 4,737.86 : x
  2. Step 2: Convert to fraction form
    17,220.85/25,828.24 = 4,737.86/x
  3. Step 3: Cross multiply
    17,220.85x = 25,828.24 × 4,737.86
  4. Step 4: Simplify right side
    17,220.85x = 122,370,585.17
  5. Step 5: Solve for x
    x = 122,370,585.17/17,220.85
  6. Step 6: Final answer
    x = 7,105.96

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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.