Home / 18,682.52-25,776.33-11,125.05

Finding the Fourth Proportional to 18,682.52, 25,776.33 and 11,125.05

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Solution

The fourth proportional to 18,682.52, 25,776.33 and 11,125.05 is: 15,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.52 : 25,776.33 = 11,125.05 : x
  2. Step 2: Convert to fraction form
    18,682.52/25,776.33 = 11,125.05/x
  3. Step 3: Cross multiply
    18,682.52x = 25,776.33 × 11,125.05
  4. Step 4: Simplify right side
    18,682.52x = 286,762,960.07
  5. Step 5: Solve for x
    x = 286,762,960.07/18,682.52
  6. Step 6: Final answer
    x = 15,349.27

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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.