Home / 67,276.13-100,928.43-19,887.48

Finding the Fourth Proportional to 67,276.13, 100,928.43 and 19,887.48

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Solution

The fourth proportional to 67,276.13, 100,928.43 and 19,887.48 is: 29,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,276.13 : 100,928.43 = 19,887.48 : x
  2. Step 2: Convert to fraction form
    67,276.13/100,928.43 = 19,887.48/x
  3. Step 3: Cross multiply
    67,276.13x = 100,928.43 × 19,887.48
  4. Step 4: Simplify right side
    67,276.13x = 2,007,212,133.06
  5. Step 5: Solve for x
    x = 2,007,212,133.06/67,276.13
  6. Step 6: Final answer
    x = 29,835.43

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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.