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Finding the Fourth Proportional to 19,674.36, 29,511.81 and 10,964.63

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Solution

The fourth proportional to 19,674.36, 29,511.81 and 10,964.63 is: 16,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,674.36 : 29,511.81 = 10,964.63 : x
  2. Step 2: Convert to fraction form
    19,674.36/29,511.81 = 10,964.63/x
  3. Step 3: Cross multiply
    19,674.36x = 29,511.81 × 10,964.63
  4. Step 4: Simplify right side
    19,674.36x = 323,586,151.06
  5. Step 5: Solve for x
    x = 323,586,151.06/19,674.36
  6. Step 6: Final answer
    x = 16,447.10

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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.