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Finding the Fourth Proportional to 57,491.55, 86,257.77 and 21,955.50

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Solution

The fourth proportional to 57,491.55, 86,257.77 and 21,955.50 is: 32,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491.55 : 86,257.77 = 21,955.50 : x
  2. Step 2: Convert to fraction form
    57,491.55/86,257.77 = 21,955.50/x
  3. Step 3: Cross multiply
    57,491.55x = 86,257.77 × 21,955.50
  4. Step 4: Simplify right side
    57,491.55x = 1,893,832,469.24
  5. Step 5: Solve for x
    x = 1,893,832,469.24/57,491.55
  6. Step 6: Final answer
    x = 32,941.06

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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.