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Finding the Fourth Proportional to 73,695.64, 110,543.46 and 18,291.64

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Solution

The fourth proportional to 73,695.64, 110,543.46 and 18,291.64 is: 27,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,695.64 : 110,543.46 = 18,291.64 : x
  2. Step 2: Convert to fraction form
    73,695.64/110,543.46 = 18,291.64/x
  3. Step 3: Cross multiply
    73,695.64x = 110,543.46 × 18,291.64
  4. Step 4: Simplify right side
    73,695.64x = 2,022,021,174.67
  5. Step 5: Solve for x
    x = 2,022,021,174.67/73,695.64
  6. Step 6: Final answer
    x = 27,437.46

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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.