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Finding the Fourth Proportional to 64,464.99, 96,681.07 and 20,083.47

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Solution

The fourth proportional to 64,464.99, 96,681.07 and 20,083.47 is: 30,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,464.99 : 96,681.07 = 20,083.47 : x
  2. Step 2: Convert to fraction form
    64,464.99/96,681.07 = 20,083.47/x
  3. Step 3: Cross multiply
    64,464.99x = 96,681.07 × 20,083.47
  4. Step 4: Simplify right side
    64,464.99x = 1,941,691,368.91
  5. Step 5: Solve for x
    x = 1,941,691,368.91/64,464.99
  6. Step 6: Final answer
    x = 30,120.09

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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.