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Finding the Fourth Proportional to 58,990.70, 88,499.16 and 21,550.70

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Solution

The fourth proportional to 58,990.70, 88,499.16 and 21,550.70 is: 32,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,990.70 : 88,499.16 = 21,550.70 : x
  2. Step 2: Convert to fraction form
    58,990.70/88,499.16 = 21,550.70/x
  3. Step 3: Cross multiply
    58,990.70x = 88,499.16 × 21,550.70
  4. Step 4: Simplify right side
    58,990.70x = 1,907,218,847.41
  5. Step 5: Solve for x
    x = 1,907,218,847.41/58,990.70
  6. Step 6: Final answer
    x = 32,330.84

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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.