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Finding the Fourth Proportional to 18,090.60, 24,963.66 and 10,131

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Solution

The fourth proportional to 18,090.60, 24,963.66 and 10,131 is: 13,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.60 : 24,963.66 = 10,131 : x
  2. Step 2: Convert to fraction form
    18,090.60/24,963.66 = 10,131/x
  3. Step 3: Cross multiply
    18,090.60x = 24,963.66 × 10,131
  4. Step 4: Simplify right side
    18,090.60x = 252,906,839.46
  5. Step 5: Solve for x
    x = 252,906,839.46/18,090.60
  6. Step 6: Final answer
    x = 13,980.01

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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.