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Finding the Fourth Proportional to 15,799.96, 21,804.24 and 8,726.23

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Solution

The fourth proportional to 15,799.96, 21,804.24 and 8,726.23 is: 12,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.96 : 21,804.24 = 8,726.23 : x
  2. Step 2: Convert to fraction form
    15,799.96/21,804.24 = 8,726.23/x
  3. Step 3: Cross multiply
    15,799.96x = 21,804.24 × 8,726.23
  4. Step 4: Simplify right side
    15,799.96x = 190,268,813.22
  5. Step 5: Solve for x
    x = 190,268,813.22/15,799.96
  6. Step 6: Final answer
    x = 12,042.36

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Double scale
Find fourth proportional to 15,800.96, 21,805.62 and 8,727.23
Similar ratio
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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.