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Finding the Fourth Proportional to 25,696.44, 38,542.98 and 8,167.32

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Solution

The fourth proportional to 25,696.44, 38,542.98 and 8,167.32 is: 12,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,696.44 : 38,542.98 = 8,167.32 : x
  2. Step 2: Convert to fraction form
    25,696.44/38,542.98 = 8,167.32/x
  3. Step 3: Cross multiply
    25,696.44x = 38,542.98 × 8,167.32
  4. Step 4: Simplify right side
    25,696.44x = 314,792,851.41
  5. Step 5: Solve for x
    x = 314,792,851.41/25,696.44
  6. Step 6: Final answer
    x = 12,250.45

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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.