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Finding the Fourth Proportional to 51,407.44, 70,920.80 and 34,611.28

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Solution

The fourth proportional to 51,407.44, 70,920.80 and 34,611.28 is: 47,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,407.44 : 70,920.80 = 34,611.28 : x
  2. Step 2: Convert to fraction form
    51,407.44/70,920.80 = 34,611.28/x
  3. Step 3: Cross multiply
    51,407.44x = 70,920.80 × 34,611.28
  4. Step 4: Simplify right side
    51,407.44x = 2,454,659,666.62
  5. Step 5: Solve for x
    x = 2,454,659,666.62/51,407.44
  6. Step 6: Final answer
    x = 47,749.11

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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.