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Finding the Fourth Proportional to 15,799.14, 21,802.37 and 8,725.41

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Solution

The fourth proportional to 15,799.14, 21,802.37 and 8,725.41 is: 12,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.14 : 21,802.37 = 8,725.41 : x
  2. Step 2: Convert to fraction form
    15,799.14/21,802.37 = 8,725.41/x
  3. Step 3: Cross multiply
    15,799.14x = 21,802.37 × 8,725.41
  4. Step 4: Simplify right side
    15,799.14x = 190,234,573.59
  5. Step 5: Solve for x
    x = 190,234,573.59/15,799.14
  6. Step 6: Final answer
    x = 12,040.82

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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.