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Finding the Fourth Proportional to 18,392.52, 27,588.84 and 9,630

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Solution

The fourth proportional to 18,392.52, 27,588.84 and 9,630 is: 14,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.52 : 27,588.84 = 9,630 : x
  2. Step 2: Convert to fraction form
    18,392.52/27,588.84 = 9,630/x
  3. Step 3: Cross multiply
    18,392.52x = 27,588.84 × 9,630
  4. Step 4: Simplify right side
    18,392.52x = 265,680,529.20
  5. Step 5: Solve for x
    x = 265,680,529.20/18,392.52
  6. Step 6: Final answer
    x = 14,445.03

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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.