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Finding the Fourth Proportional to 9,963.68, 13,751.52 and 7,601.36

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Solution

The fourth proportional to 9,963.68, 13,751.52 and 7,601.36 is: 10,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.68 : 13,751.52 = 7,601.36 : x
  2. Step 2: Convert to fraction form
    9,963.68/13,751.52 = 7,601.36/x
  3. Step 3: Cross multiply
    9,963.68x = 13,751.52 × 7,601.36
  4. Step 4: Simplify right side
    9,963.68x = 104,530,254.07
  5. Step 5: Solve for x
    x = 104,530,254.07/9,963.68
  6. Step 6: Final answer
    x = 10,491.13

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1.5x scale

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.