Home / 69,945.16-104,878.84-28,343.56

Finding the Fourth Proportional to 69,945.16, 104,878.84 and 28,343.56

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Solution

The fourth proportional to 69,945.16, 104,878.84 and 28,343.56 is: 42,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,945.16 : 104,878.84 = 28,343.56 : x
  2. Step 2: Convert to fraction form
    69,945.16/104,878.84 = 28,343.56/x
  3. Step 3: Cross multiply
    69,945.16x = 104,878.84 × 28,343.56
  4. Step 4: Simplify right side
    69,945.16x = 2,972,639,694.27
  5. Step 5: Solve for x
    x = 2,972,639,694.27/69,945.16
  6. Step 6: Final answer
    x = 42,499.58

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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.