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Finding the Fourth Proportional to 14,910.70, 22,378.20 and 14,424.70

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Solution

The fourth proportional to 14,910.70, 22,378.20 and 14,424.70 is: 21,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.70 : 22,378.20 = 14,424.70 : x
  2. Step 2: Convert to fraction form
    14,910.70/22,378.20 = 14,424.70/x
  3. Step 3: Cross multiply
    14,910.70x = 22,378.20 × 14,424.70
  4. Step 4: Simplify right side
    14,910.70x = 322,798,821.54
  5. Step 5: Solve for x
    x = 322,798,821.54/14,910.70
  6. Step 6: Final answer
    x = 21,648.80

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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.