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Finding the Fourth Proportional to 13,101.44, 18,074.76 and 7,794.32

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Solution

The fourth proportional to 13,101.44, 18,074.76 and 7,794.32 is: 10,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.44 : 18,074.76 = 7,794.32 : x
  2. Step 2: Convert to fraction form
    13,101.44/18,074.76 = 7,794.32/x
  3. Step 3: Cross multiply
    13,101.44x = 18,074.76 × 7,794.32
  4. Step 4: Simplify right side
    13,101.44x = 140,880,463.36
  5. Step 5: Solve for x
    x = 140,880,463.36/13,101.44
  6. Step 6: Final answer
    x = 10,753.05

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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.