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Finding the Fourth Proportional to 25,731.52, 38,602.40 and 10,940.32

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Solution

The fourth proportional to 25,731.52, 38,602.40 and 10,940.32 is: 16,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.52 : 38,602.40 = 10,940.32 : x
  2. Step 2: Convert to fraction form
    25,731.52/38,602.40 = 10,940.32/x
  3. Step 3: Cross multiply
    25,731.52x = 38,602.40 × 10,940.32
  4. Step 4: Simplify right side
    25,731.52x = 422,322,608.77
  5. Step 5: Solve for x
    x = 422,322,608.77/25,731.52
  6. Step 6: Final answer
    x = 16,412.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.