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Finding the Fourth Proportional to 47,073.25, 70,609.81 and 12,012.91

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Solution

The fourth proportional to 47,073.25, 70,609.81 and 12,012.91 is: 18,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,073.25 : 70,609.81 = 12,012.91 : x
  2. Step 2: Convert to fraction form
    47,073.25/70,609.81 = 12,012.91/x
  3. Step 3: Cross multiply
    47,073.25x = 70,609.81 × 12,012.91
  4. Step 4: Simplify right side
    47,073.25x = 848,228,969.63
  5. Step 5: Solve for x
    x = 848,228,969.63/47,073.25
  6. Step 6: Final answer
    x = 18,019.34

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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.