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Finding the Fourth Proportional to 22,398.63, 33,618.73 and 11,313.10

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Solution

The fourth proportional to 22,398.63, 33,618.73 and 11,313.10 is: 16,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,398.63 : 33,618.73 = 11,313.10 : x
  2. Step 2: Convert to fraction form
    22,398.63/33,618.73 = 11,313.10/x
  3. Step 3: Cross multiply
    22,398.63x = 33,618.73 × 11,313.10
  4. Step 4: Simplify right side
    22,398.63x = 380,332,054.36
  5. Step 5: Solve for x
    x = 380,332,054.36/22,398.63
  6. Step 6: Final answer
    x = 16,980.15

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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.