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Finding the Fourth Proportional to 53,651.25, 80,478.39 and 14,208.39

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Solution

The fourth proportional to 53,651.25, 80,478.39 and 14,208.39 is: 21,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,651.25 : 80,478.39 = 14,208.39 : x
  2. Step 2: Convert to fraction form
    53,651.25/80,478.39 = 14,208.39/x
  3. Step 3: Cross multiply
    53,651.25x = 80,478.39 × 14,208.39
  4. Step 4: Simplify right side
    53,651.25x = 1,143,468,351.69
  5. Step 5: Solve for x
    x = 1,143,468,351.69/53,651.25
  6. Step 6: Final answer
    x = 21,312.99

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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.