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Finding the Fourth Proportional to 17,686.24, 26,529.18 and 8,320.24

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Solution

The fourth proportional to 17,686.24, 26,529.18 and 8,320.24 is: 12,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.24 : 26,529.18 = 8,320.24 : x
  2. Step 2: Convert to fraction form
    17,686.24/26,529.18 = 8,320.24/x
  3. Step 3: Cross multiply
    17,686.24x = 26,529.18 × 8,320.24
  4. Step 4: Simplify right side
    17,686.24x = 220,729,144.60
  5. Step 5: Solve for x
    x = 220,729,144.60/17,686.24
  6. Step 6: Final answer
    x = 12,480.28

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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.