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Finding the Fourth Proportional to 69,894.30, 96,450.82 and 39,675.63

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Solution

The fourth proportional to 69,894.30, 96,450.82 and 39,675.63 is: 54,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,894.30 : 96,450.82 = 39,675.63 : x
  2. Step 2: Convert to fraction form
    69,894.30/96,450.82 = 39,675.63/x
  3. Step 3: Cross multiply
    69,894.30x = 96,450.82 × 39,675.63
  4. Step 4: Simplify right side
    69,894.30x = 3,826,747,047.52
  5. Step 5: Solve for x
    x = 3,826,747,047.52/69,894.30
  6. Step 6: Final answer
    x = 54,750.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.