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Finding the Fourth Proportional to 18,563.72, 25,619.10 and 10,180.22

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Solution

The fourth proportional to 18,563.72, 25,619.10 and 10,180.22 is: 14,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.72 : 25,619.10 = 10,180.22 : x
  2. Step 2: Convert to fraction form
    18,563.72/25,619.10 = 10,180.22/x
  3. Step 3: Cross multiply
    18,563.72x = 25,619.10 × 10,180.22
  4. Step 4: Simplify right side
    18,563.72x = 260,808,074.20
  5. Step 5: Solve for x
    x = 260,808,074.20/18,563.72
  6. Step 6: Final answer
    x = 14,049.34

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Half scale
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Double scale
Find fourth proportional to 18,564.72, 25,620.48 and 10,181.22
Similar ratio
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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.