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Finding the Fourth Proportional to 8,560.41, 12,822.93 and 5,039.57

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Solution

The fourth proportional to 8,560.41, 12,822.93 and 5,039.57 is: 7,548.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.41 : 12,822.93 = 5,039.57 : x
  2. Step 2: Convert to fraction form
    8,560.41/12,822.93 = 5,039.57/x
  3. Step 3: Cross multiply
    8,560.41x = 12,822.93 × 5,039.57
  4. Step 4: Simplify right side
    8,560.41x = 64,622,028.14
  5. Step 5: Solve for x
    x = 64,622,028.14/8,560.41
  6. Step 6: Final answer
    x = 7,548.94

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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.