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Finding the Fourth Proportional to 58,441.60, 87,604.80 and 28,835.20

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Solution

The fourth proportional to 58,441.60, 87,604.80 and 28,835.20 is: 43,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,441.60 : 87,604.80 = 28,835.20 : x
  2. Step 2: Convert to fraction form
    58,441.60/87,604.80 = 28,835.20/x
  3. Step 3: Cross multiply
    58,441.60x = 87,604.80 × 28,835.20
  4. Step 4: Simplify right side
    58,441.60x = 2,526,101,928.96
  5. Step 5: Solve for x
    x = 2,526,101,928.96/58,441.60
  6. Step 6: Final answer
    x = 43,224.38

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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.