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Finding the Fourth Proportional to 60,800.51, 91,209.87 and 21,350.67

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Solution

The fourth proportional to 60,800.51, 91,209.87 and 21,350.67 is: 32,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,800.51 : 91,209.87 = 21,350.67 : x
  2. Step 2: Convert to fraction form
    60,800.51/91,209.87 = 21,350.67/x
  3. Step 3: Cross multiply
    60,800.51x = 91,209.87 × 21,350.67
  4. Step 4: Simplify right side
    60,800.51x = 1,947,391,835.11
  5. Step 5: Solve for x
    x = 1,947,391,835.11/60,800.51
  6. Step 6: Final answer
    x = 32,029.20

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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.