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Finding the Fourth Proportional to 17,658.75, 26,485.22 and 5,812.68

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Solution

The fourth proportional to 17,658.75, 26,485.22 and 5,812.68 is: 8,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,658.75 : 26,485.22 = 5,812.68 : x
  2. Step 2: Convert to fraction form
    17,658.75/26,485.22 = 5,812.68/x
  3. Step 3: Cross multiply
    17,658.75x = 26,485.22 × 5,812.68
  4. Step 4: Simplify right side
    17,658.75x = 153,950,079.53
  5. Step 5: Solve for x
    x = 153,950,079.53/17,658.75
  6. Step 6: Final answer
    x = 8,718.06

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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.