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Finding the Fourth Proportional to 26,407.81, 36,442.47 and 15,797.42

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Solution

The fourth proportional to 26,407.81, 36,442.47 and 15,797.42 is: 21,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,407.81 : 36,442.47 = 15,797.42 : x
  2. Step 2: Convert to fraction form
    26,407.81/36,442.47 = 15,797.42/x
  3. Step 3: Cross multiply
    26,407.81x = 36,442.47 × 15,797.42
  4. Step 4: Simplify right side
    26,407.81x = 575,697,004.43
  5. Step 5: Solve for x
    x = 575,697,004.43/26,407.81
  6. Step 6: Final answer
    x = 21,800.26

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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.