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Finding the Fourth Proportional to 28,997.97, 40,020.01 and 16,253.32

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Solution

The fourth proportional to 28,997.97, 40,020.01 and 16,253.32 is: 22,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.97 : 40,020.01 = 16,253.32 : x
  2. Step 2: Convert to fraction form
    28,997.97/40,020.01 = 16,253.32/x
  3. Step 3: Cross multiply
    28,997.97x = 40,020.01 × 16,253.32
  4. Step 4: Simplify right side
    28,997.97x = 650,457,888.25
  5. Step 5: Solve for x
    x = 650,457,888.25/28,997.97
  6. Step 6: Final answer
    x = 22,431.15

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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.