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Finding the Fourth Proportional to 18,076.16, 24,948.09 and 12,406.25

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Solution

The fourth proportional to 18,076.16, 24,948.09 and 12,406.25 is: 17,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.16 : 24,948.09 = 12,406.25 : x
  2. Step 2: Convert to fraction form
    18,076.16/24,948.09 = 12,406.25/x
  3. Step 3: Cross multiply
    18,076.16x = 24,948.09 × 12,406.25
  4. Step 4: Simplify right side
    18,076.16x = 309,512,251.40
  5. Step 5: Solve for x
    x = 309,512,251.40/18,076.16
  6. Step 6: Final answer
    x = 17,122.67

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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.