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Finding the Fourth Proportional to 74,769.28, 112,134.40 and 22,164.64

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Solution

The fourth proportional to 74,769.28, 112,134.40 and 22,164.64 is: 33,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,769.28 : 112,134.40 = 22,164.64 : x
  2. Step 2: Convert to fraction form
    74,769.28/112,134.40 = 22,164.64/x
  3. Step 3: Cross multiply
    74,769.28x = 112,134.40 × 22,164.64
  4. Step 4: Simplify right side
    74,769.28x = 2,485,418,607.62
  5. Step 5: Solve for x
    x = 2,485,418,607.62/74,769.28
  6. Step 6: Final answer
    x = 33,241.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.