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Finding the Fourth Proportional to 45,903.70, 68,853.93 and 18,201.70

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Solution

The fourth proportional to 45,903.70, 68,853.93 and 18,201.70 is: 27,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,903.70 : 68,853.93 = 18,201.70 : x
  2. Step 2: Convert to fraction form
    45,903.70/68,853.93 = 18,201.70/x
  3. Step 3: Cross multiply
    45,903.70x = 68,853.93 × 18,201.70
  4. Step 4: Simplify right side
    45,903.70x = 1,253,258,577.68
  5. Step 5: Solve for x
    x = 1,253,258,577.68/45,903.70
  6. Step 6: Final answer
    x = 27,301.91

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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.