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Finding the Fourth Proportional to 7,910.71, 10,917.27 and 4,553.45

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Solution

The fourth proportional to 7,910.71, 10,917.27 and 4,553.45 is: 6,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.71 : 10,917.27 = 4,553.45 : x
  2. Step 2: Convert to fraction form
    7,910.71/10,917.27 = 4,553.45/x
  3. Step 3: Cross multiply
    7,910.71x = 10,917.27 × 4,553.45
  4. Step 4: Simplify right side
    7,910.71x = 49,711,243.08
  5. Step 5: Solve for x
    x = 49,711,243.08/7,910.71
  6. Step 6: Final answer
    x = 6,284.04

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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.