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Finding the Fourth Proportional to 61,568.58, 84,964.64 and 33,274.28

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Solution

The fourth proportional to 61,568.58, 84,964.64 and 33,274.28 is: 45,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,568.58 : 84,964.64 = 33,274.28 : x
  2. Step 2: Convert to fraction form
    61,568.58/84,964.64 = 33,274.28/x
  3. Step 3: Cross multiply
    61,568.58x = 84,964.64 × 33,274.28
  4. Step 4: Simplify right side
    61,568.58x = 2,827,136,630.26
  5. Step 5: Solve for x
    x = 2,827,136,630.26/61,568.58
  6. Step 6: Final answer
    x = 45,918.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.