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Finding the Fourth Proportional to 70,351.96, 105,529.29 and 25,955.86

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Solution

The fourth proportional to 70,351.96, 105,529.29 and 25,955.86 is: 38,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.96 : 105,529.29 = 25,955.86 : x
  2. Step 2: Convert to fraction form
    70,351.96/105,529.29 = 25,955.86/x
  3. Step 3: Cross multiply
    70,351.96x = 105,529.29 × 25,955.86
  4. Step 4: Simplify right side
    70,351.96x = 2,739,103,477.14
  5. Step 5: Solve for x
    x = 2,739,103,477.14/70,351.96
  6. Step 6: Final answer
    x = 38,934.29

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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.