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Finding the Fourth Proportional to 61,203.60, 91,792.44 and 21,763.08

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Solution

The fourth proportional to 61,203.60, 91,792.44 and 21,763.08 is: 32,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.60 : 91,792.44 = 21,763.08 : x
  2. Step 2: Convert to fraction form
    61,203.60/91,792.44 = 21,763.08/x
  3. Step 3: Cross multiply
    61,203.60x = 91,792.44 × 21,763.08
  4. Step 4: Simplify right side
    61,203.60x = 1,997,686,215.12
  5. Step 5: Solve for x
    x = 1,997,686,215.12/61,203.60
  6. Step 6: Final answer
    x = 32,640.01

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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.