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Finding the Fourth Proportional to 18,446.09, 25,466.09 and 12,176.69

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Solution

The fourth proportional to 18,446.09, 25,466.09 and 12,176.69 is: 16,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.09 : 25,466.09 = 12,176.69 : x
  2. Step 2: Convert to fraction form
    18,446.09/25,466.09 = 12,176.69/x
  3. Step 3: Cross multiply
    18,446.09x = 25,466.09 × 12,176.69
  4. Step 4: Simplify right side
    18,446.09x = 310,092,495.23
  5. Step 5: Solve for x
    x = 310,092,495.23/18,446.09
  6. Step 6: Final answer
    x = 16,810.75

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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.