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Finding the Fourth Proportional to 18,924.94, 25,927.29 and 18,215.52

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Solution

The fourth proportional to 18,924.94, 25,927.29 and 18,215.52 is: 24,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.94 : 25,927.29 = 18,215.52 : x
  2. Step 2: Convert to fraction form
    18,924.94/25,927.29 = 18,215.52/x
  3. Step 3: Cross multiply
    18,924.94x = 25,927.29 × 18,215.52
  4. Step 4: Simplify right side
    18,924.94x = 472,278,972.31
  5. Step 5: Solve for x
    x = 472,278,972.31/18,924.94
  6. Step 6: Final answer
    x = 24,955.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.