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Finding the Fourth Proportional to 8,580.92, 11,837.46 and 5,392.46

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Solution

The fourth proportional to 8,580.92, 11,837.46 and 5,392.46 is: 7,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.92 : 11,837.46 = 5,392.46 : x
  2. Step 2: Convert to fraction form
    8,580.92/11,837.46 = 5,392.46/x
  3. Step 3: Cross multiply
    8,580.92x = 11,837.46 × 5,392.46
  4. Step 4: Simplify right side
    8,580.92x = 63,833,029.55
  5. Step 5: Solve for x
    x = 63,833,029.55/8,580.92
  6. Step 6: Final answer
    x = 7,438.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.