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Finding the Fourth Proportional to 47,199.88, 70,809.56 and 39,462.76

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Solution

The fourth proportional to 47,199.88, 70,809.56 and 39,462.76 is: 59,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,199.88 : 70,809.56 = 39,462.76 : x
  2. Step 2: Convert to fraction form
    47,199.88/70,809.56 = 39,462.76/x
  3. Step 3: Cross multiply
    47,199.88x = 70,809.56 × 39,462.76
  4. Step 4: Simplify right side
    47,199.88x = 2,794,340,671.99
  5. Step 5: Solve for x
    x = 2,794,340,671.99/47,199.88
  6. Step 6: Final answer
    x = 59,202.28

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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.