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Finding the Fourth Proportional to 77,574.22, 107,027.82 and 47,344.41

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Solution

The fourth proportional to 77,574.22, 107,027.82 and 47,344.41 is: 65,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,574.22 : 107,027.82 = 47,344.41 : x
  2. Step 2: Convert to fraction form
    77,574.22/107,027.82 = 47,344.41/x
  3. Step 3: Cross multiply
    77,574.22x = 107,027.82 × 47,344.41
  4. Step 4: Simplify right side
    77,574.22x = 5,067,168,754.76
  5. Step 5: Solve for x
    x = 5,067,168,754.76/77,574.22
  6. Step 6: Final answer
    x = 65,320.27

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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.