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Finding the Fourth Proportional to 32,647.97, 45,076.18 and 20,401.97

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Solution

The fourth proportional to 32,647.97, 45,076.18 and 20,401.97 is: 28,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,647.97 : 45,076.18 = 20,401.97 : x
  2. Step 2: Convert to fraction form
    32,647.97/45,076.18 = 20,401.97/x
  3. Step 3: Cross multiply
    32,647.97x = 45,076.18 × 20,401.97
  4. Step 4: Simplify right side
    32,647.97x = 919,642,646.69
  5. Step 5: Solve for x
    x = 919,642,646.69/32,647.97
  6. Step 6: Final answer
    x = 28,168.45

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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.