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Finding the Fourth Proportional to 11,606.28, 17,410.28 and 4,210.78

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Solution

The fourth proportional to 11,606.28, 17,410.28 and 4,210.78 is: 6,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,606.28 : 17,410.28 = 4,210.78 : x
  2. Step 2: Convert to fraction form
    11,606.28/17,410.28 = 4,210.78/x
  3. Step 3: Cross multiply
    11,606.28x = 17,410.28 × 4,210.78
  4. Step 4: Simplify right side
    11,606.28x = 73,310,858.82
  5. Step 5: Solve for x
    x = 73,310,858.82/11,606.28
  6. Step 6: Final answer
    x = 6,316.48

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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.