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Finding the Fourth Proportional to 51,067.96, 70,444.96 and 30,644.76

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Solution

The fourth proportional to 51,067.96, 70,444.96 and 30,644.76 is: 42,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,067.96 : 70,444.96 = 30,644.76 : x
  2. Step 2: Convert to fraction form
    51,067.96/70,444.96 = 30,644.76/x
  3. Step 3: Cross multiply
    51,067.96x = 70,444.96 × 30,644.76
  4. Step 4: Simplify right side
    51,067.96x = 2,158,768,892.41
  5. Step 5: Solve for x
    x = 2,158,768,892.41/51,067.96
  6. Step 6: Final answer
    x = 42,272.47

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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.