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Finding the Fourth Proportional to 18,376.46, 27,560.54 and 5,228.54

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Solution

The fourth proportional to 18,376.46, 27,560.54 and 5,228.54 is: 7,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.46 : 27,560.54 = 5,228.54 : x
  2. Step 2: Convert to fraction form
    18,376.46/27,560.54 = 5,228.54/x
  3. Step 3: Cross multiply
    18,376.46x = 27,560.54 × 5,228.54
  4. Step 4: Simplify right side
    18,376.46x = 144,101,385.81
  5. Step 5: Solve for x
    x = 144,101,385.81/18,376.46
  6. Step 6: Final answer
    x = 7,841.63

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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.