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Finding the Fourth Proportional to 15,800.24, 21,804.24 and 8,726.66

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Solution

The fourth proportional to 15,800.24, 21,804.24 and 8,726.66 is: 12,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,800.24 : 21,804.24 = 8,726.66 : x
  2. Step 2: Convert to fraction form
    15,800.24/21,804.24 = 8,726.66/x
  3. Step 3: Cross multiply
    15,800.24x = 21,804.24 × 8,726.66
  4. Step 4: Simplify right side
    15,800.24x = 190,278,189.04
  5. Step 5: Solve for x
    x = 190,278,189.04/15,800.24
  6. Step 6: Final answer
    x = 12,042.74

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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.