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Finding the Fourth Proportional to 70,033.34, 96,640.59 and 39,819.03

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Solution

The fourth proportional to 70,033.34, 96,640.59 and 39,819.03 is: 54,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,033.34 : 96,640.59 = 39,819.03 : x
  2. Step 2: Convert to fraction form
    70,033.34/96,640.59 = 39,819.03/x
  3. Step 3: Cross multiply
    70,033.34x = 96,640.59 × 39,819.03
  4. Step 4: Simplify right side
    70,033.34x = 3,848,134,552.43
  5. Step 5: Solve for x
    x = 3,848,134,552.43/70,033.34
  6. Step 6: Final answer
    x = 54,947.18

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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.