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Finding the Fourth Proportional to 18,627.16, 27,929.92 and 7,524.76

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Solution

The fourth proportional to 18,627.16, 27,929.92 and 7,524.76 is: 11,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.16 : 27,929.92 = 7,524.76 : x
  2. Step 2: Convert to fraction form
    18,627.16/27,929.92 = 7,524.76/x
  3. Step 3: Cross multiply
    18,627.16x = 27,929.92 × 7,524.76
  4. Step 4: Simplify right side
    18,627.16x = 210,165,944.82
  5. Step 5: Solve for x
    x = 210,165,944.82/18,627.16
  6. Step 6: Final answer
    x = 11,282.77

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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.