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Finding the Fourth Proportional to 18,224.34, 27,322.53 and 8,356.51

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Solution

The fourth proportional to 18,224.34, 27,322.53 and 8,356.51 is: 12,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,224.34 : 27,322.53 = 8,356.51 : x
  2. Step 2: Convert to fraction form
    18,224.34/27,322.53 = 8,356.51/x
  3. Step 3: Cross multiply
    18,224.34x = 27,322.53 × 8,356.51
  4. Step 4: Simplify right side
    18,224.34x = 228,320,995.17
  5. Step 5: Solve for x
    x = 228,320,995.17/18,224.34
  6. Step 6: Final answer
    x = 12,528.35

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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.