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Finding the Fourth Proportional to 18,644.99, 25,727.36 and 10,577.39

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Solution

The fourth proportional to 18,644.99, 25,727.36 and 10,577.39 is: 14,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.99 : 25,727.36 = 10,577.39 : x
  2. Step 2: Convert to fraction form
    18,644.99/25,727.36 = 10,577.39/x
  3. Step 3: Cross multiply
    18,644.99x = 25,727.36 × 10,577.39
  4. Step 4: Simplify right side
    18,644.99x = 272,128,138.87
  5. Step 5: Solve for x
    x = 272,128,138.87/18,644.99
  6. Step 6: Final answer
    x = 14,595.25

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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.