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Finding the Fourth Proportional to 14,940.70, 22,423.20 and 14,454.70

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Solution

The fourth proportional to 14,940.70, 22,423.20 and 14,454.70 is: 21,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.70 : 22,423.20 = 14,454.70 : x
  2. Step 2: Convert to fraction form
    14,940.70/22,423.20 = 14,454.70/x
  3. Step 3: Cross multiply
    14,940.70x = 22,423.20 × 14,454.70
  4. Step 4: Simplify right side
    14,940.70x = 324,120,629.04
  5. Step 5: Solve for x
    x = 324,120,629.04/14,940.70
  6. Step 6: Final answer
    x = 21,693.80

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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.