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Finding the Fourth Proportional to 46,840.73, 64,640.10 and 25,620

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Solution

The fourth proportional to 46,840.73, 64,640.10 and 25,620 is: 35,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,840.73 : 64,640.10 = 25,620 : x
  2. Step 2: Convert to fraction form
    46,840.73/64,640.10 = 25,620/x
  3. Step 3: Cross multiply
    46,840.73x = 64,640.10 × 25,620
  4. Step 4: Simplify right side
    46,840.73x = 1,656,079,362
  5. Step 5: Solve for x
    x = 1,656,079,362/46,840.73
  6. Step 6: Final answer
    x = 35,355.54

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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.