Home / 28,649.53-39,528.24-18,578.38

Finding the Fourth Proportional to 28,649.53, 39,528.24 and 18,578.38

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Solution

The fourth proportional to 28,649.53, 39,528.24 and 18,578.38 is: 25,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.53 : 39,528.24 = 18,578.38 : x
  2. Step 2: Convert to fraction form
    28,649.53/39,528.24 = 18,578.38/x
  3. Step 3: Cross multiply
    28,649.53x = 39,528.24 × 18,578.38
  4. Step 4: Simplify right side
    28,649.53x = 734,370,663.45
  5. Step 5: Solve for x
    x = 734,370,663.45/28,649.53
  6. Step 6: Final answer
    x = 25,632.90

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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.