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Finding the Fourth Proportional to 5,309.63, 7,963.54 and 1,610.96

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Solution

The fourth proportional to 5,309.63, 7,963.54 and 1,610.96 is: 2,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.63 : 7,963.54 = 1,610.96 : x
  2. Step 2: Convert to fraction form
    5,309.63/7,963.54 = 1,610.96/x
  3. Step 3: Cross multiply
    5,309.63x = 7,963.54 × 1,610.96
  4. Step 4: Simplify right side
    5,309.63x = 12,828,972.28
  5. Step 5: Solve for x
    x = 12,828,972.28/5,309.63
  6. Step 6: Final answer
    x = 2,416.17

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1.5x scale

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.