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Finding the Fourth Proportional to 18,090.95, 24,965.21 and 10,133.15

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Solution

The fourth proportional to 18,090.95, 24,965.21 and 10,133.15 is: 13,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.95 : 24,965.21 = 10,133.15 : x
  2. Step 2: Convert to fraction form
    18,090.95/24,965.21 = 10,133.15/x
  3. Step 3: Cross multiply
    18,090.95x = 24,965.21 × 10,133.15
  4. Step 4: Simplify right side
    18,090.95x = 252,976,118.22
  5. Step 5: Solve for x
    x = 252,976,118.22/18,090.95
  6. Step 6: Final answer
    x = 13,983.58

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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.