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Finding the Fourth Proportional to 72,577.15, 108,865.74 and 22,661.52

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Solution

The fourth proportional to 72,577.15, 108,865.74 and 22,661.52 is: 33,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577.15 : 108,865.74 = 22,661.52 : x
  2. Step 2: Convert to fraction form
    72,577.15/108,865.74 = 22,661.52/x
  3. Step 3: Cross multiply
    72,577.15x = 108,865.74 × 22,661.52
  4. Step 4: Simplify right side
    72,577.15x = 2,467,063,031.02
  5. Step 5: Solve for x
    x = 2,467,063,031.02/72,577.15
  6. Step 6: Final answer
    x = 33,992.28

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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.