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Finding the Fourth Proportional to 29,220.56, 40,324.02 and 16,645.28

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Solution

The fourth proportional to 29,220.56, 40,324.02 and 16,645.28 is: 22,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220.56 : 40,324.02 = 16,645.28 : x
  2. Step 2: Convert to fraction form
    29,220.56/40,324.02 = 16,645.28/x
  3. Step 3: Cross multiply
    29,220.56x = 40,324.02 × 16,645.28
  4. Step 4: Simplify right side
    29,220.56x = 671,204,603.63
  5. Step 5: Solve for x
    x = 671,204,603.63/29,220.56
  6. Step 6: Final answer
    x = 22,970.29

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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.