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Finding the Fourth Proportional to 64,557.88, 96,633.91 and 40,782.97

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Solution

The fourth proportional to 64,557.88, 96,633.91 and 40,782.97 is: 61,046.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,557.88 : 96,633.91 = 40,782.97 : x
  2. Step 2: Convert to fraction form
    64,557.88/96,633.91 = 40,782.97/x
  3. Step 3: Cross multiply
    64,557.88x = 96,633.91 × 40,782.97
  4. Step 4: Simplify right side
    64,557.88x = 3,941,017,852.51
  5. Step 5: Solve for x
    x = 3,941,017,852.51/64,557.88
  6. Step 6: Final answer
    x = 61,046.27

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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.