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Finding the Fourth Proportional to 10,047.91, 13,866.04 and 5,571.66

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Solution

The fourth proportional to 10,047.91, 13,866.04 and 5,571.66 is: 7,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,047.91 : 13,866.04 = 5,571.66 : x
  2. Step 2: Convert to fraction form
    10,047.91/13,866.04 = 5,571.66/x
  3. Step 3: Cross multiply
    10,047.91x = 13,866.04 × 5,571.66
  4. Step 4: Simplify right side
    10,047.91x = 77,256,860.43
  5. Step 5: Solve for x
    x = 77,256,860.43/10,047.91
  6. Step 6: Final answer
    x = 7,688.85

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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.