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Finding the Fourth Proportional to 70,264.76, 105,438.66 and 25,922.66

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Solution

The fourth proportional to 70,264.76, 105,438.66 and 25,922.66 is: 38,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,264.76 : 105,438.66 = 25,922.66 : x
  2. Step 2: Convert to fraction form
    70,264.76/105,438.66 = 25,922.66/x
  3. Step 3: Cross multiply
    70,264.76x = 105,438.66 × 25,922.66
  4. Step 4: Simplify right side
    70,264.76x = 2,733,250,270.44
  5. Step 5: Solve for x
    x = 2,733,250,270.44/70,264.76
  6. Step 6: Final answer
    x = 38,899.31

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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.