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Finding the Fourth Proportional to 70,955.70, 106,393.05 and 26,583.90

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Solution

The fourth proportional to 70,955.70, 106,393.05 and 26,583.90 is: 39,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,955.70 : 106,393.05 = 26,583.90 : x
  2. Step 2: Convert to fraction form
    70,955.70/106,393.05 = 26,583.90/x
  3. Step 3: Cross multiply
    70,955.70x = 106,393.05 × 26,583.90
  4. Step 4: Simplify right side
    70,955.70x = 2,828,342,201.90
  5. Step 5: Solve for x
    x = 2,828,342,201.90/70,955.70
  6. Step 6: Final answer
    x = 39,860.68

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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.