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Finding the Fourth Proportional to 16,649.70, 22,929.81 and 16,286.82

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Solution

The fourth proportional to 16,649.70, 22,929.81 and 16,286.82 is: 22,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,649.70 : 22,929.81 = 16,286.82 : x
  2. Step 2: Convert to fraction form
    16,649.70/22,929.81 = 16,286.82/x
  3. Step 3: Cross multiply
    16,649.70x = 22,929.81 × 16,286.82
  4. Step 4: Simplify right side
    16,649.70x = 373,453,688.10
  5. Step 5: Solve for x
    x = 373,453,688.10/16,649.70
  6. Step 6: Final answer
    x = 22,430.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.