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Finding the Fourth Proportional to 43,888.60, 65,831.42 and 17,586.28

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Solution

The fourth proportional to 43,888.60, 65,831.42 and 17,586.28 is: 26,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,888.60 : 65,831.42 = 17,586.28 : x
  2. Step 2: Convert to fraction form
    43,888.60/65,831.42 = 17,586.28/x
  3. Step 3: Cross multiply
    43,888.60x = 65,831.42 × 17,586.28
  4. Step 4: Simplify right side
    43,888.60x = 1,157,729,784.92
  5. Step 5: Solve for x
    x = 1,157,729,784.92/43,888.60
  6. Step 6: Final answer
    x = 26,378.83

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Why These Related Problems?

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