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Finding the Fourth Proportional to 18,533.88, 25,578.90 and 10,577.25

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Solution

The fourth proportional to 18,533.88, 25,578.90 and 10,577.25 is: 14,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533.88 : 25,578.90 = 10,577.25 : x
  2. Step 2: Convert to fraction form
    18,533.88/25,578.90 = 10,577.25/x
  3. Step 3: Cross multiply
    18,533.88x = 25,578.90 × 10,577.25
  4. Step 4: Simplify right side
    18,533.88x = 270,554,420.03
  5. Step 5: Solve for x
    x = 270,554,420.03/18,533.88
  6. Step 6: Final answer
    x = 14,597.83

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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.