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Finding the Fourth Proportional to 18,802.34, 25,939.56 and 11,627.16

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Solution

The fourth proportional to 18,802.34, 25,939.56 and 11,627.16 is: 16,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.34 : 25,939.56 = 11,627.16 : x
  2. Step 2: Convert to fraction form
    18,802.34/25,939.56 = 11,627.16/x
  3. Step 3: Cross multiply
    18,802.34x = 25,939.56 × 11,627.16
  4. Step 4: Simplify right side
    18,802.34x = 301,603,414.45
  5. Step 5: Solve for x
    x = 301,603,414.45/18,802.34
  6. Step 6: Final answer
    x = 16,040.74

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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.