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Finding the Fourth Proportional to 15,407.59, 21,262.41 and 8,693.22

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Solution

The fourth proportional to 15,407.59, 21,262.41 and 8,693.22 is: 11,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.59 : 21,262.41 = 8,693.22 : x
  2. Step 2: Convert to fraction form
    15,407.59/21,262.41 = 8,693.22/x
  3. Step 3: Cross multiply
    15,407.59x = 21,262.41 × 8,693.22
  4. Step 4: Simplify right side
    15,407.59x = 184,838,807.86
  5. Step 5: Solve for x
    x = 184,838,807.86/15,407.59
  6. Step 6: Final answer
    x = 11,996.61

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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.