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Finding the Fourth Proportional to 58,697.60, 87,981.60 and 32,421.20

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Solution

The fourth proportional to 58,697.60, 87,981.60 and 32,421.20 is: 48,596.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,697.60 : 87,981.60 = 32,421.20 : x
  2. Step 2: Convert to fraction form
    58,697.60/87,981.60 = 32,421.20/x
  3. Step 3: Cross multiply
    58,697.60x = 87,981.60 × 32,421.20
  4. Step 4: Simplify right side
    58,697.60x = 2,852,469,049.92
  5. Step 5: Solve for x
    x = 2,852,469,049.92/58,697.60
  6. Step 6: Final answer
    x = 48,596.01

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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.