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Finding the Fourth Proportional to 14,649.92, 20,225.51 and 9,622.91

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Solution

The fourth proportional to 14,649.92, 20,225.51 and 9,622.91 is: 13,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.92 : 20,225.51 = 9,622.91 : x
  2. Step 2: Convert to fraction form
    14,649.92/20,225.51 = 9,622.91/x
  3. Step 3: Cross multiply
    14,649.92x = 20,225.51 × 9,622.91
  4. Step 4: Simplify right side
    14,649.92x = 194,628,241.33
  5. Step 5: Solve for x
    x = 194,628,241.33/14,649.92
  6. Step 6: Final answer
    x = 13,285.28

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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.