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Finding the Fourth Proportional to 47,213.70, 70,819.86 and 19,133.52

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Solution

The fourth proportional to 47,213.70, 70,819.86 and 19,133.52 is: 28,700.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,213.70 : 70,819.86 = 19,133.52 : x
  2. Step 2: Convert to fraction form
    47,213.70/70,819.86 = 19,133.52/x
  3. Step 3: Cross multiply
    47,213.70x = 70,819.86 × 19,133.52
  4. Step 4: Simplify right side
    47,213.70x = 1,355,033,207.71
  5. Step 5: Solve for x
    x = 1,355,033,207.71/47,213.70
  6. Step 6: Final answer
    x = 28,700.00

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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.