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Finding the Fourth Proportional to 83,697.63, 125,550.77 and 21,368.67

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Solution

The fourth proportional to 83,697.63, 125,550.77 and 21,368.67 is: 32,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,697.63 : 125,550.77 = 21,368.67 : x
  2. Step 2: Convert to fraction form
    83,697.63/125,550.77 = 21,368.67/x
  3. Step 3: Cross multiply
    83,697.63x = 125,550.77 × 21,368.67
  4. Step 4: Simplify right side
    83,697.63x = 2,682,852,865.53
  5. Step 5: Solve for x
    x = 2,682,852,865.53/83,697.63
  6. Step 6: Final answer
    x = 32,054.11

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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.