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Finding the Fourth Proportional to 7,238.93, 9,981.79 and 4,716.37

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Solution

The fourth proportional to 7,238.93, 9,981.79 and 4,716.37 is: 6,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.93 : 9,981.79 = 4,716.37 : x
  2. Step 2: Convert to fraction form
    7,238.93/9,981.79 = 4,716.37/x
  3. Step 3: Cross multiply
    7,238.93x = 9,981.79 × 4,716.37
  4. Step 4: Simplify right side
    7,238.93x = 47,077,814.90
  5. Step 5: Solve for x
    x = 47,077,814.90/7,238.93
  6. Step 6: Final answer
    x = 6,503.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.