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Finding the Fourth Proportional to 50,716.76, 69,988.50 and 28,053.99

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Solution

The fourth proportional to 50,716.76, 69,988.50 and 28,053.99 is: 38,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,716.76 : 69,988.50 = 28,053.99 : x
  2. Step 2: Convert to fraction form
    50,716.76/69,988.50 = 28,053.99/x
  3. Step 3: Cross multiply
    50,716.76x = 69,988.50 × 28,053.99
  4. Step 4: Simplify right side
    50,716.76x = 1,963,456,679.12
  5. Step 5: Solve for x
    x = 1,963,456,679.12/50,716.76
  6. Step 6: Final answer
    x = 38,714.16

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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.