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Finding the Fourth Proportional to 13,427.62, 20,141.62 and 4,662.74

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Solution

The fourth proportional to 13,427.62, 20,141.62 and 4,662.74 is: 6,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.62 : 20,141.62 = 4,662.74 : x
  2. Step 2: Convert to fraction form
    13,427.62/20,141.62 = 4,662.74/x
  3. Step 3: Cross multiply
    13,427.62x = 20,141.62 × 4,662.74
  4. Step 4: Simplify right side
    13,427.62x = 93,915,137.24
  5. Step 5: Solve for x
    x = 93,915,137.24/13,427.62
  6. Step 6: Final answer
    x = 6,994.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.