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Finding the Fourth Proportional to 70,879.24, 97,809.69 and 39,047.41

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Solution

The fourth proportional to 70,879.24, 97,809.69 and 39,047.41 is: 53,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.24 : 97,809.69 = 39,047.41 : x
  2. Step 2: Convert to fraction form
    70,879.24/97,809.69 = 39,047.41/x
  3. Step 3: Cross multiply
    70,879.24x = 97,809.69 × 39,047.41
  4. Step 4: Simplify right side
    70,879.24x = 3,819,215,067.40
  5. Step 5: Solve for x
    x = 3,819,215,067.40/70,879.24
  6. Step 6: Final answer
    x = 53,883.41

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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.