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Finding the Fourth Proportional to 18,076.99, 24,948.59 and 10,120.86

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Solution

The fourth proportional to 18,076.99, 24,948.59 and 10,120.86 is: 13,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.99 : 24,948.59 = 10,120.86 : x
  2. Step 2: Convert to fraction form
    18,076.99/24,948.59 = 10,120.86/x
  3. Step 3: Cross multiply
    18,076.99x = 24,948.59 × 10,120.86
  4. Step 4: Simplify right side
    18,076.99x = 252,501,135.98
  5. Step 5: Solve for x
    x = 252,501,135.98/18,076.99
  6. Step 6: Final answer
    x = 13,968.10

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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.