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Finding the Fourth Proportional to 50,616, 69,854.40 and 28,264.32

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Solution

The fourth proportional to 50,616, 69,854.40 and 28,264.32 is: 39,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,616 : 69,854.40 = 28,264.32 : x
  2. Step 2: Convert to fraction form
    50,616/69,854.40 = 28,264.32/x
  3. Step 3: Cross multiply
    50,616x = 69,854.40 × 28,264.32
  4. Step 4: Simplify right side
    50,616x = 1,974,387,115.01
  5. Step 5: Solve for x
    x = 1,974,387,115.01/50,616
  6. Step 6: Final answer
    x = 39,007.17

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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.