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Finding the Fourth Proportional to 58,375.19, 87,530.42 and 20,414.28

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Solution

The fourth proportional to 58,375.19, 87,530.42 and 20,414.28 is: 30,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,375.19 : 87,530.42 = 20,414.28 : x
  2. Step 2: Convert to fraction form
    58,375.19/87,530.42 = 20,414.28/x
  3. Step 3: Cross multiply
    58,375.19x = 87,530.42 × 20,414.28
  4. Step 4: Simplify right side
    58,375.19x = 1,786,870,400.33
  5. Step 5: Solve for x
    x = 1,786,870,400.33/58,375.19
  6. Step 6: Final answer
    x = 30,610.10

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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.