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Finding the Fourth Proportional to 18,097.48, 24,977.73 and 12,129.94

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Solution

The fourth proportional to 18,097.48, 24,977.73 and 12,129.94 is: 16,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,097.48 : 24,977.73 = 12,129.94 : x
  2. Step 2: Convert to fraction form
    18,097.48/24,977.73 = 12,129.94/x
  3. Step 3: Cross multiply
    18,097.48x = 24,977.73 × 12,129.94
  4. Step 4: Simplify right side
    18,097.48x = 302,978,366.24
  5. Step 5: Solve for x
    x = 302,978,366.24/18,097.48
  6. Step 6: Final answer
    x = 16,741.47

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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.