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Finding the Fourth Proportional to 22,995.60, 34,467.80 and 13,139.60

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Solution

The fourth proportional to 22,995.60, 34,467.80 and 13,139.60 is: 19,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,995.60 : 34,467.80 = 13,139.60 : x
  2. Step 2: Convert to fraction form
    22,995.60/34,467.80 = 13,139.60/x
  3. Step 3: Cross multiply
    22,995.60x = 34,467.80 × 13,139.60
  4. Step 4: Simplify right side
    22,995.60x = 452,893,104.88
  5. Step 5: Solve for x
    x = 452,893,104.88/22,995.60
  6. Step 6: Final answer
    x = 19,694.77

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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.