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Finding the Fourth Proportional to 10,661.41, 14,713.41 and 6,186.16

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Solution

The fourth proportional to 10,661.41, 14,713.41 and 6,186.16 is: 8,537.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.41 : 14,713.41 = 6,186.16 : x
  2. Step 2: Convert to fraction form
    10,661.41/14,713.41 = 6,186.16/x
  3. Step 3: Cross multiply
    10,661.41x = 14,713.41 × 6,186.16
  4. Step 4: Simplify right side
    10,661.41x = 91,019,508.41
  5. Step 5: Solve for x
    x = 91,019,508.41/10,661.41
  6. Step 6: Final answer
    x = 8,537.29

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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.