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Finding the Fourth Proportional to 18,476.76, 27,718.78 and 8,088.50

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Solution

The fourth proportional to 18,476.76, 27,718.78 and 8,088.50 is: 12,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.76 : 27,718.78 = 8,088.50 : x
  2. Step 2: Convert to fraction form
    18,476.76/27,718.78 = 8,088.50/x
  3. Step 3: Cross multiply
    18,476.76x = 27,718.78 × 8,088.50
  4. Step 4: Simplify right side
    18,476.76x = 224,203,352.03
  5. Step 5: Solve for x
    x = 224,203,352.03/18,476.76
  6. Step 6: Final answer
    x = 12,134.34

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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.