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Finding the Fourth Proportional to 74,681.28, 112,022.80 and 22,091.80

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Solution

The fourth proportional to 74,681.28, 112,022.80 and 22,091.80 is: 33,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.28 : 112,022.80 = 22,091.80 : x
  2. Step 2: Convert to fraction form
    74,681.28/112,022.80 = 22,091.80/x
  3. Step 3: Cross multiply
    74,681.28x = 112,022.80 × 22,091.80
  4. Step 4: Simplify right side
    74,681.28x = 2,474,785,293.04
  5. Step 5: Solve for x
    x = 2,474,785,293.04/74,681.28
  6. Step 6: Final answer
    x = 33,137.96

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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.