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Finding the Fourth Proportional to 64,992.20, 97,491.77 and 18,248.72

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Solution

The fourth proportional to 64,992.20, 97,491.77 and 18,248.72 is: 27,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,992.20 : 97,491.77 = 18,248.72 : x
  2. Step 2: Convert to fraction form
    64,992.20/97,491.77 = 18,248.72/x
  3. Step 3: Cross multiply
    64,992.20x = 97,491.77 × 18,248.72
  4. Step 4: Simplify right side
    64,992.20x = 1,779,099,502.76
  5. Step 5: Solve for x
    x = 1,779,099,502.76/64,992.20
  6. Step 6: Final answer
    x = 27,374.05

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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.