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Finding the Fourth Proportional to 70,329.94, 105,491.67 and 25,953.82

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Solution

The fourth proportional to 70,329.94, 105,491.67 and 25,953.82 is: 38,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,329.94 : 105,491.67 = 25,953.82 : x
  2. Step 2: Convert to fraction form
    70,329.94/105,491.67 = 25,953.82/x
  3. Step 3: Cross multiply
    70,329.94x = 105,491.67 × 25,953.82
  4. Step 4: Simplify right side
    70,329.94x = 2,737,911,814.68
  5. Step 5: Solve for x
    x = 2,737,911,814.68/70,329.94
  6. Step 6: Final answer
    x = 38,929.53

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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.