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Finding the Fourth Proportional to 15,879.51, 23,830.20 and 7,124.22

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Solution

The fourth proportional to 15,879.51, 23,830.20 and 7,124.22 is: 10,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.51 : 23,830.20 = 7,124.22 : x
  2. Step 2: Convert to fraction form
    15,879.51/23,830.20 = 7,124.22/x
  3. Step 3: Cross multiply
    15,879.51x = 23,830.20 × 7,124.22
  4. Step 4: Simplify right side
    15,879.51x = 169,771,587.44
  5. Step 5: Solve for x
    x = 169,771,587.44/15,879.51
  6. Step 6: Final answer
    x = 10,691.24

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