Home / 69,028.19-103,536.71-19,109.20

Finding the Fourth Proportional to 69,028.19, 103,536.71 and 19,109.20

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Solution

The fourth proportional to 69,028.19, 103,536.71 and 19,109.20 is: 28,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,028.19 : 103,536.71 = 19,109.20 : x
  2. Step 2: Convert to fraction form
    69,028.19/103,536.71 = 19,109.20/x
  3. Step 3: Cross multiply
    69,028.19x = 103,536.71 × 19,109.20
  4. Step 4: Simplify right side
    69,028.19x = 1,978,503,698.73
  5. Step 5: Solve for x
    x = 1,978,503,698.73/69,028.19
  6. Step 6: Final answer
    x = 28,662.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.