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Finding the Fourth Proportional to 61,195.88, 91,802.94 and 21,749.80

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Solution

The fourth proportional to 61,195.88, 91,802.94 and 21,749.80 is: 32,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,195.88 : 91,802.94 = 21,749.80 : x
  2. Step 2: Convert to fraction form
    61,195.88/91,802.94 = 21,749.80/x
  3. Step 3: Cross multiply
    61,195.88x = 91,802.94 × 21,749.80
  4. Step 4: Simplify right side
    61,195.88x = 1,996,695,584.41
  5. Step 5: Solve for x
    x = 1,996,695,584.41/61,195.88
  6. Step 6: Final answer
    x = 32,627.94

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1.5x scale

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.