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Finding the Fourth Proportional to 61,094.88, 91,629.12 and 21,653.28

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Solution

The fourth proportional to 61,094.88, 91,629.12 and 21,653.28 is: 32,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,094.88 : 91,629.12 = 21,653.28 : x
  2. Step 2: Convert to fraction form
    61,094.88/91,629.12 = 21,653.28/x
  3. Step 3: Cross multiply
    61,094.88x = 91,629.12 × 21,653.28
  4. Step 4: Simplify right side
    61,094.88x = 1,984,070,991.51
  5. Step 5: Solve for x
    x = 1,984,070,991.51/61,094.88
  6. Step 6: Final answer
    x = 32,475.24

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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.