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Finding the Fourth Proportional to 10,627.77, 15,942.06 and 5,427.57

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Solution

The fourth proportional to 10,627.77, 15,942.06 and 5,427.57 is: 8,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,627.77 : 15,942.06 = 5,427.57 : x
  2. Step 2: Convert to fraction form
    10,627.77/15,942.06 = 5,427.57/x
  3. Step 3: Cross multiply
    10,627.77x = 15,942.06 × 5,427.57
  4. Step 4: Simplify right side
    10,627.77x = 86,526,646.59
  5. Step 5: Solve for x
    x = 86,526,646.59/10,627.77
  6. Step 6: Final answer
    x = 8,141.56

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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.