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Finding the Fourth Proportional to 72,327.74, 108,482.96 and 19,023.87

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Solution

The fourth proportional to 72,327.74, 108,482.96 and 19,023.87 is: 28,533.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,327.74 : 108,482.96 = 19,023.87 : x
  2. Step 2: Convert to fraction form
    72,327.74/108,482.96 = 19,023.87/x
  3. Step 3: Cross multiply
    72,327.74x = 108,482.96 × 19,023.87
  4. Step 4: Simplify right side
    72,327.74x = 2,063,765,728.26
  5. Step 5: Solve for x
    x = 2,063,765,728.26/72,327.74
  6. Step 6: Final answer
    x = 28,533.53

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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.