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Finding the Fourth Proportional to 18,090.99, 24,964.74 and 10,132.74

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Solution

The fourth proportional to 18,090.99, 24,964.74 and 10,132.74 is: 13,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.99 : 24,964.74 = 10,132.74 : x
  2. Step 2: Convert to fraction form
    18,090.99/24,964.74 = 10,132.74/x
  3. Step 3: Cross multiply
    18,090.99x = 24,964.74 × 10,132.74
  4. Step 4: Simplify right side
    18,090.99x = 252,961,219.59
  5. Step 5: Solve for x
    x = 252,961,219.59/18,090.99
  6. Step 6: Final answer
    x = 13,982.72

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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.