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Finding the Fourth Proportional to 10,905.93, 15,049.06 and 6,126.41

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Solution

The fourth proportional to 10,905.93, 15,049.06 and 6,126.41 is: 8,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.93 : 15,049.06 = 6,126.41 : x
  2. Step 2: Convert to fraction form
    10,905.93/15,049.06 = 6,126.41/x
  3. Step 3: Cross multiply
    10,905.93x = 15,049.06 × 6,126.41
  4. Step 4: Simplify right side
    10,905.93x = 92,196,711.67
  5. Step 5: Solve for x
    x = 92,196,711.67/10,905.93
  6. Step 6: Final answer
    x = 8,453.81

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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.