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Finding the Fourth Proportional to 18,263.46, 27,393.84 and 8,874.48

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Solution

The fourth proportional to 18,263.46, 27,393.84 and 8,874.48 is: 13,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,263.46 : 27,393.84 = 8,874.48 : x
  2. Step 2: Convert to fraction form
    18,263.46/27,393.84 = 8,874.48/x
  3. Step 3: Cross multiply
    18,263.46x = 27,393.84 × 8,874.48
  4. Step 4: Simplify right side
    18,263.46x = 243,106,085.20
  5. Step 5: Solve for x
    x = 243,106,085.20/18,263.46
  6. Step 6: Final answer
    x = 13,311.06

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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.