Home / 27,790.72-38,325.28-25,726.56

Finding the Fourth Proportional to 27,790.72, 38,325.28 and 25,726.56

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Solution

The fourth proportional to 27,790.72, 38,325.28 and 25,726.56 is: 35,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.72 : 38,325.28 = 25,726.56 : x
  2. Step 2: Convert to fraction form
    27,790.72/38,325.28 = 25,726.56/x
  3. Step 3: Cross multiply
    27,790.72x = 38,325.28 × 25,726.56
  4. Step 4: Simplify right side
    27,790.72x = 985,977,791.31
  5. Step 5: Solve for x
    x = 985,977,791.31/27,790.72
  6. Step 6: Final answer
    x = 35,478.67

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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.