Home / 18,725.50-25,828.09-18,107.74

Finding the Fourth Proportional to 18,725.50, 25,828.09 and 18,107.74

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Solution

The fourth proportional to 18,725.50, 25,828.09 and 18,107.74 is: 24,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.50 : 25,828.09 = 18,107.74 : x
  2. Step 2: Convert to fraction form
    18,725.50/25,828.09 = 18,107.74/x
  3. Step 3: Cross multiply
    18,725.50x = 25,828.09 × 18,107.74
  4. Step 4: Simplify right side
    18,725.50x = 467,688,338.42
  5. Step 5: Solve for x
    x = 467,688,338.42/18,725.50
  6. Step 6: Final answer
    x = 24,976.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.