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Finding the Fourth Proportional to 85,572.96, 128,358.96 and 23,243.44

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Solution

The fourth proportional to 85,572.96, 128,358.96 and 23,243.44 is: 34,865.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,572.96 : 128,358.96 = 23,243.44 : x
  2. Step 2: Convert to fraction form
    85,572.96/128,358.96 = 23,243.44/x
  3. Step 3: Cross multiply
    85,572.96x = 128,358.96 × 23,243.44
  4. Step 4: Simplify right side
    85,572.96x = 2,983,503,785.22
  5. Step 5: Solve for x
    x = 2,983,503,785.22/85,572.96
  6. Step 6: Final answer
    x = 34,865.03

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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.