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Finding the Fourth Proportional to 64,073.61, 96,119.60 and 19,704.10

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Solution

The fourth proportional to 64,073.61, 96,119.60 and 19,704.10 is: 29,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,073.61 : 96,119.60 = 19,704.10 : x
  2. Step 2: Convert to fraction form
    64,073.61/96,119.60 = 19,704.10/x
  3. Step 3: Cross multiply
    64,073.61x = 96,119.60 × 19,704.10
  4. Step 4: Simplify right side
    64,073.61x = 1,893,950,210.36
  5. Step 5: Solve for x
    x = 1,893,950,210.36/64,073.61
  6. Step 6: Final answer
    x = 29,558.97

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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.