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Finding the Fourth Proportional to 58,640.70, 87,928.65 and 23,540.70

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Solution

The fourth proportional to 58,640.70, 87,928.65 and 23,540.70 is: 35,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,640.70 : 87,928.65 = 23,540.70 : x
  2. Step 2: Convert to fraction form
    58,640.70/87,928.65 = 23,540.70/x
  3. Step 3: Cross multiply
    58,640.70x = 87,928.65 × 23,540.70
  4. Step 4: Simplify right side
    58,640.70x = 2,069,901,971.06
  5. Step 5: Solve for x
    x = 2,069,901,971.06/58,640.70
  6. Step 6: Final answer
    x = 35,298.04

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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.