Home / 70,279.12-96,986.36-38,448.24

Finding the Fourth Proportional to 70,279.12, 96,986.36 and 38,448.24

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Solution

The fourth proportional to 70,279.12, 96,986.36 and 38,448.24 is: 53,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,279.12 : 96,986.36 = 38,448.24 : x
  2. Step 2: Convert to fraction form
    70,279.12/96,986.36 = 38,448.24/x
  3. Step 3: Cross multiply
    70,279.12x = 96,986.36 × 38,448.24
  4. Step 4: Simplify right side
    70,279.12x = 3,728,954,846.01
  5. Step 5: Solve for x
    x = 3,728,954,846.01/70,279.12
  6. Step 6: Final answer
    x = 53,059.21

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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.