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Finding the Fourth Proportional to 9,288.92, 13,935.42 and 4,905.35

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Solution

The fourth proportional to 9,288.92, 13,935.42 and 4,905.35 is: 7,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.92 : 13,935.42 = 4,905.35 : x
  2. Step 2: Convert to fraction form
    9,288.92/13,935.42 = 4,905.35/x
  3. Step 3: Cross multiply
    9,288.92x = 13,935.42 × 4,905.35
  4. Step 4: Simplify right side
    9,288.92x = 68,358,112.50
  5. Step 5: Solve for x
    x = 68,358,112.50/9,288.92
  6. Step 6: Final answer
    x = 7,359.10

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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.