Home / 25,556.23-35,280.33-19,800.78

Finding the Fourth Proportional to 25,556.23, 35,280.33 and 19,800.78

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Solution

The fourth proportional to 25,556.23, 35,280.33 and 19,800.78 is: 27,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.23 : 35,280.33 = 19,800.78 : x
  2. Step 2: Convert to fraction form
    25,556.23/35,280.33 = 19,800.78/x
  3. Step 3: Cross multiply
    25,556.23x = 35,280.33 × 19,800.78
  4. Step 4: Simplify right side
    25,556.23x = 698,577,846.10
  5. Step 5: Solve for x
    x = 698,577,846.10/25,556.23
  6. Step 6: Final answer
    x = 27,334.93

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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.