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Finding the Fourth Proportional to 70,007.28, 104,976.36 and 25,600.56

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Solution

The fourth proportional to 70,007.28, 104,976.36 and 25,600.56 is: 38,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,007.28 : 104,976.36 = 25,600.56 : x
  2. Step 2: Convert to fraction form
    70,007.28/104,976.36 = 25,600.56/x
  3. Step 3: Cross multiply
    70,007.28x = 104,976.36 × 25,600.56
  4. Step 4: Simplify right side
    70,007.28x = 2,687,453,602.76
  5. Step 5: Solve for x
    x = 2,687,453,602.76/70,007.28
  6. Step 6: Final answer
    x = 38,388.20

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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.