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Finding the Fourth Proportional to 18,586.54, 27,885.27 and 7,487.52

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Solution

The fourth proportional to 18,586.54, 27,885.27 and 7,487.52 is: 11,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.54 : 27,885.27 = 7,487.52 : x
  2. Step 2: Convert to fraction form
    18,586.54/27,885.27 = 7,487.52/x
  3. Step 3: Cross multiply
    18,586.54x = 27,885.27 × 7,487.52
  4. Step 4: Simplify right side
    18,586.54x = 208,791,516.83
  5. Step 5: Solve for x
    x = 208,791,516.83/18,586.54
  6. Step 6: Final answer
    x = 11,233.48

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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.