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Finding the Fourth Proportional to 10,684.26, 14,737.86 and 6,906.12

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Solution

The fourth proportional to 10,684.26, 14,737.86 and 6,906.12 is: 9,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,684.26 : 14,737.86 = 6,906.12 : x
  2. Step 2: Convert to fraction form
    10,684.26/14,737.86 = 6,906.12/x
  3. Step 3: Cross multiply
    10,684.26x = 14,737.86 × 6,906.12
  4. Step 4: Simplify right side
    10,684.26x = 101,781,429.70
  5. Step 5: Solve for x
    x = 101,781,429.70/10,684.26
  6. Step 6: Final answer
    x = 9,526.30

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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.