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Finding the Fourth Proportional to 18,047.91, 24,907.47 and 12,081.99

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Solution

The fourth proportional to 18,047.91, 24,907.47 and 12,081.99 is: 16,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.91 : 24,907.47 = 12,081.99 : x
  2. Step 2: Convert to fraction form
    18,047.91/24,907.47 = 12,081.99/x
  3. Step 3: Cross multiply
    18,047.91x = 24,907.47 × 12,081.99
  4. Step 4: Simplify right side
    18,047.91x = 300,931,803.47
  5. Step 5: Solve for x
    x = 300,931,803.47/18,047.91
  6. Step 6: Final answer
    x = 16,674.05

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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.