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Finding the Fourth Proportional to 4,908.64, 7,356.72 and 2,308

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Solution

The fourth proportional to 4,908.64, 7,356.72 and 2,308 is: 3,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.64 : 7,356.72 = 2,308 : x
  2. Step 2: Convert to fraction form
    4,908.64/7,356.72 = 2,308/x
  3. Step 3: Cross multiply
    4,908.64x = 7,356.72 × 2,308
  4. Step 4: Simplify right side
    4,908.64x = 16,979,309.76
  5. Step 5: Solve for x
    x = 16,979,309.76/4,908.64
  6. Step 6: Final answer
    x = 3,459.07

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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.