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Finding the Fourth Proportional to 39,473.52, 54,477.24 and 21,571.24

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Solution

The fourth proportional to 39,473.52, 54,477.24 and 21,571.24 is: 29,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,473.52 : 54,477.24 = 21,571.24 : x
  2. Step 2: Convert to fraction form
    39,473.52/54,477.24 = 21,571.24/x
  3. Step 3: Cross multiply
    39,473.52x = 54,477.24 × 21,571.24
  4. Step 4: Simplify right side
    39,473.52x = 1,175,141,618.58
  5. Step 5: Solve for x
    x = 1,175,141,618.58/39,473.52
  6. Step 6: Final answer
    x = 29,770.38

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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.