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Finding the Fourth Proportional to 13,699.53, 20,550.51 and 4,934.52

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Solution

The fourth proportional to 13,699.53, 20,550.51 and 4,934.52 is: 7,402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.53 : 20,550.51 = 4,934.52 : x
  2. Step 2: Convert to fraction form
    13,699.53/20,550.51 = 4,934.52/x
  3. Step 3: Cross multiply
    13,699.53x = 20,550.51 × 4,934.52
  4. Step 4: Simplify right side
    13,699.53x = 101,406,902.61
  5. Step 5: Solve for x
    x = 101,406,902.61/13,699.53
  6. Step 6: Final answer
    x = 7,402.22

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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.