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Finding the Fourth Proportional to 18,109.32, 27,124.92 and 14,953.92

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Solution

The fourth proportional to 18,109.32, 27,124.92 and 14,953.92 is: 22,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.32 : 27,124.92 = 14,953.92 : x
  2. Step 2: Convert to fraction form
    18,109.32/27,124.92 = 14,953.92/x
  3. Step 3: Cross multiply
    18,109.32x = 27,124.92 × 14,953.92
  4. Step 4: Simplify right side
    18,109.32x = 405,623,883.69
  5. Step 5: Solve for x
    x = 405,623,883.69/18,109.32
  6. Step 6: Final answer
    x = 22,398.63

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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.