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Finding the Fourth Proportional to 38,338.92, 52,907.67 and 21,571.92

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Solution

The fourth proportional to 38,338.92, 52,907.67 and 21,571.92 is: 29,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.92 : 52,907.67 = 21,571.92 : x
  2. Step 2: Convert to fraction form
    38,338.92/52,907.67 = 21,571.92/x
  3. Step 3: Cross multiply
    38,338.92x = 52,907.67 × 21,571.92
  4. Step 4: Simplify right side
    38,338.92x = 1,141,320,024.63
  5. Step 5: Solve for x
    x = 1,141,320,024.63/38,338.92
  6. Step 6: Final answer
    x = 29,769.23

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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.