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Finding the Fourth Proportional to 50,473, 69,655.14 and 28,117

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Solution

The fourth proportional to 50,473, 69,655.14 and 28,117 is: 38,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,473 : 69,655.14 = 28,117 : x
  2. Step 2: Convert to fraction form
    50,473/69,655.14 = 28,117/x
  3. Step 3: Cross multiply
    50,473x = 69,655.14 × 28,117
  4. Step 4: Simplify right side
    50,473x = 1,958,493,571.38
  5. Step 5: Solve for x
    x = 1,958,493,571.38/50,473
  6. Step 6: Final answer
    x = 38,802.80

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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.