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Finding the Fourth Proportional to 19,377.96, 29,069.70 and 6,894.31

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Solution

The fourth proportional to 19,377.96, 29,069.70 and 6,894.31 is: 10,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.96 : 29,069.70 = 6,894.31 : x
  2. Step 2: Convert to fraction form
    19,377.96/29,069.70 = 6,894.31/x
  3. Step 3: Cross multiply
    19,377.96x = 29,069.70 × 6,894.31
  4. Step 4: Simplify right side
    19,377.96x = 200,415,488.94
  5. Step 5: Solve for x
    x = 200,415,488.94/19,377.96
  6. Step 6: Final answer
    x = 10,342.45

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1.5x scale

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.