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Finding the Fourth Proportional to 56,894.44, 85,352.66 and 21,831.37

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Solution

The fourth proportional to 56,894.44, 85,352.66 and 21,831.37 is: 32,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894.44 : 85,352.66 = 21,831.37 : x
  2. Step 2: Convert to fraction form
    56,894.44/85,352.66 = 21,831.37/x
  3. Step 3: Cross multiply
    56,894.44x = 85,352.66 × 21,831.37
  4. Step 4: Simplify right side
    56,894.44x = 1,863,365,128.76
  5. Step 5: Solve for x
    x = 1,863,365,128.76/56,894.44
  6. Step 6: Final answer
    x = 32,751.27

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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.