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Finding the Fourth Proportional to 47,858.88, 71,788.32 and 12,797.63

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Solution

The fourth proportional to 47,858.88, 71,788.32 and 12,797.63 is: 19,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,858.88 : 71,788.32 = 12,797.63 : x
  2. Step 2: Convert to fraction form
    47,858.88/71,788.32 = 12,797.63/x
  3. Step 3: Cross multiply
    47,858.88x = 71,788.32 × 12,797.63
  4. Step 4: Simplify right side
    47,858.88x = 918,719,998.74
  5. Step 5: Solve for x
    x = 918,719,998.74/47,858.88
  6. Step 6: Final answer
    x = 19,196.44

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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.