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Finding the Fourth Proportional to 18,580.76, 27,875.40 and 8,052.55

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Solution

The fourth proportional to 18,580.76, 27,875.40 and 8,052.55 is: 12,080.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.76 : 27,875.40 = 8,052.55 : x
  2. Step 2: Convert to fraction form
    18,580.76/27,875.40 = 8,052.55/x
  3. Step 3: Cross multiply
    18,580.76x = 27,875.40 × 8,052.55
  4. Step 4: Simplify right side
    18,580.76x = 224,467,952.38
  5. Step 5: Solve for x
    x = 224,467,952.38/18,580.76
  6. Step 6: Final answer
    x = 12,080.67

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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.