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Finding the Fourth Proportional to 26,143.78, 36,077.96 and 14,207.16

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Solution

The fourth proportional to 26,143.78, 36,077.96 and 14,207.16 is: 19,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.78 : 36,077.96 = 14,207.16 : x
  2. Step 2: Convert to fraction form
    26,143.78/36,077.96 = 14,207.16/x
  3. Step 3: Cross multiply
    26,143.78x = 36,077.96 × 14,207.16
  4. Step 4: Simplify right side
    26,143.78x = 512,565,441.09
  5. Step 5: Solve for x
    x = 512,565,441.09/26,143.78
  6. Step 6: Final answer
    x = 19,605.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.