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Finding the Fourth Proportional to 18,377.78, 25,367.04 and 14,607.63

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Solution

The fourth proportional to 18,377.78, 25,367.04 and 14,607.63 is: 20,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.78 : 25,367.04 = 14,607.63 : x
  2. Step 2: Convert to fraction form
    18,377.78/25,367.04 = 14,607.63/x
  3. Step 3: Cross multiply
    18,377.78x = 25,367.04 × 14,607.63
  4. Step 4: Simplify right side
    18,377.78x = 370,552,334.52
  5. Step 5: Solve for x
    x = 370,552,334.52/18,377.78
  6. Step 6: Final answer
    x = 20,163.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.