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Finding the Fourth Proportional to 70,790.94, 106,141.86 and 33,328.44

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Solution

The fourth proportional to 70,790.94, 106,141.86 and 33,328.44 is: 49,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.94 : 106,141.86 = 33,328.44 : x
  2. Step 2: Convert to fraction form
    70,790.94/106,141.86 = 33,328.44/x
  3. Step 3: Cross multiply
    70,790.94x = 106,141.86 × 33,328.44
  4. Step 4: Simplify right side
    70,790.94x = 3,537,542,612.50
  5. Step 5: Solve for x
    x = 3,537,542,612.50/70,790.94
  6. Step 6: Final answer
    x = 49,971.69

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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.