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Finding the Fourth Proportional to 29,649.31, 40,917.00 and 16,220.25

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Solution

The fourth proportional to 29,649.31, 40,917.00 and 16,220.25 is: 22,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.31 : 40,917.00 = 16,220.25 : x
  2. Step 2: Convert to fraction form
    29,649.31/40,917.00 = 16,220.25/x
  3. Step 3: Cross multiply
    29,649.31x = 40,917.00 × 16,220.25
  4. Step 4: Simplify right side
    29,649.31x = 663,684,030.08
  5. Step 5: Solve for x
    x = 663,684,030.08/29,649.31
  6. Step 6: Final answer
    x = 22,384.47

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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.