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Finding the Fourth Proportional to 9,963.74, 14,940.06 and 4,621.08

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Solution

The fourth proportional to 9,963.74, 14,940.06 and 4,621.08 is: 6,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.74 : 14,940.06 = 4,621.08 : x
  2. Step 2: Convert to fraction form
    9,963.74/14,940.06 = 4,621.08/x
  3. Step 3: Cross multiply
    9,963.74x = 14,940.06 × 4,621.08
  4. Step 4: Simplify right side
    9,963.74x = 69,039,212.46
  5. Step 5: Solve for x
    x = 69,039,212.46/9,963.74
  6. Step 6: Final answer
    x = 6,929.05

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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.