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Finding the Fourth Proportional to 61,991.74, 92,973.64 and 17,617.51

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Solution

The fourth proportional to 61,991.74, 92,973.64 and 17,617.51 is: 26,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.74 : 92,973.64 = 17,617.51 : x
  2. Step 2: Convert to fraction form
    61,991.74/92,973.64 = 17,617.51/x
  3. Step 3: Cross multiply
    61,991.74x = 92,973.64 × 17,617.51
  4. Step 4: Simplify right side
    61,991.74x = 1,637,964,032.44
  5. Step 5: Solve for x
    x = 1,637,964,032.44/61,991.74
  6. Step 6: Final answer
    x = 26,422.29

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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.