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Finding the Fourth Proportional to 74,393.47, 111,591.12 and 21,804.02

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Solution

The fourth proportional to 74,393.47, 111,591.12 and 21,804.02 is: 32,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,393.47 : 111,591.12 = 21,804.02 : x
  2. Step 2: Convert to fraction form
    74,393.47/111,591.12 = 21,804.02/x
  3. Step 3: Cross multiply
    74,393.47x = 111,591.12 × 21,804.02
  4. Step 4: Simplify right side
    74,393.47x = 2,433,134,831.93
  5. Step 5: Solve for x
    x = 2,433,134,831.93/74,393.47
  6. Step 6: Final answer
    x = 32,706.30

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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.