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Finding the Fourth Proportional to 61,246.57, 91,882.97 and 21,266.80

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Solution

The fourth proportional to 61,246.57, 91,882.97 and 21,266.80 is: 31,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,246.57 : 91,882.97 = 21,266.80 : x
  2. Step 2: Convert to fraction form
    61,246.57/91,882.97 = 21,266.80/x
  3. Step 3: Cross multiply
    61,246.57x = 91,882.97 × 21,266.80
  4. Step 4: Simplify right side
    61,246.57x = 1,954,056,746.40
  5. Step 5: Solve for x
    x = 1,954,056,746.40/61,246.57
  6. Step 6: Final answer
    x = 31,904.75

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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.