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Finding the Fourth Proportional to 21,960.40, 32,951.40 and 16,693.60

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Solution

The fourth proportional to 21,960.40, 32,951.40 and 16,693.60 is: 25,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.40 : 32,951.40 = 16,693.60 : x
  2. Step 2: Convert to fraction form
    21,960.40/32,951.40 = 16,693.60/x
  3. Step 3: Cross multiply
    21,960.40x = 32,951.40 × 16,693.60
  4. Step 4: Simplify right side
    21,960.40x = 550,077,491.04
  5. Step 5: Solve for x
    x = 550,077,491.04/21,960.40
  6. Step 6: Final answer
    x = 25,048.61

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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.