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Finding the Fourth Proportional to 47,858.77, 71,788.15 and 12,797.52

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Solution

The fourth proportional to 47,858.77, 71,788.15 and 12,797.52 is: 19,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,858.77 : 71,788.15 = 12,797.52 : x
  2. Step 2: Convert to fraction form
    47,858.77/71,788.15 = 12,797.52/x
  3. Step 3: Cross multiply
    47,858.77x = 71,788.15 × 12,797.52
  4. Step 4: Simplify right side
    47,858.77x = 918,710,032.18
  5. Step 5: Solve for x
    x = 918,710,032.18/47,858.77
  6. Step 6: Final answer
    x = 19,196.27

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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.