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Finding the Fourth Proportional to 70,329.44, 105,490.92 and 25,953.32

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Solution

The fourth proportional to 70,329.44, 105,490.92 and 25,953.32 is: 38,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,329.44 : 105,490.92 = 25,953.32 : x
  2. Step 2: Convert to fraction form
    70,329.44/105,490.92 = 25,953.32/x
  3. Step 3: Cross multiply
    70,329.44x = 105,490.92 × 25,953.32
  4. Step 4: Simplify right side
    70,329.44x = 2,737,839,603.85
  5. Step 5: Solve for x
    x = 2,737,839,603.85/70,329.44
  6. Step 6: Final answer
    x = 38,928.78

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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.