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Finding the Fourth Proportional to 9,137, 13,703.88 and 2,563.76

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Solution

The fourth proportional to 9,137, 13,703.88 and 2,563.76 is: 3,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137 : 13,703.88 = 2,563.76 : x
  2. Step 2: Convert to fraction form
    9,137/13,703.88 = 2,563.76/x
  3. Step 3: Cross multiply
    9,137x = 13,703.88 × 2,563.76
  4. Step 4: Simplify right side
    9,137x = 35,133,459.39
  5. Step 5: Solve for x
    x = 35,133,459.39/9,137
  6. Step 6: Final answer
    x = 3,845.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.