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Finding the Fourth Proportional to 6,248.64, 8,631.45 and 5,083.86

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Solution

The fourth proportional to 6,248.64, 8,631.45 and 5,083.86 is: 7,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,248.64 : 8,631.45 = 5,083.86 : x
  2. Step 2: Convert to fraction form
    6,248.64/8,631.45 = 5,083.86/x
  3. Step 3: Cross multiply
    6,248.64x = 8,631.45 × 5,083.86
  4. Step 4: Simplify right side
    6,248.64x = 43,881,083.40
  5. Step 5: Solve for x
    x = 43,881,083.40/6,248.64
  6. Step 6: Final answer
    x = 7,022.50

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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.