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Finding the Fourth Proportional to 8,651, 11,938.42 and 4,925

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Solution

The fourth proportional to 8,651, 11,938.42 and 4,925 is: 6,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651 : 11,938.42 = 4,925 : x
  2. Step 2: Convert to fraction form
    8,651/11,938.42 = 4,925/x
  3. Step 3: Cross multiply
    8,651x = 11,938.42 × 4,925
  4. Step 4: Simplify right side
    8,651x = 58,796,718.50
  5. Step 5: Solve for x
    x = 58,796,718.50/8,651
  6. Step 6: Final answer
    x = 6,796.52

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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.