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Finding the Fourth Proportional to 18,850.76, 26,015.22 and 10,467.32

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Solution

The fourth proportional to 18,850.76, 26,015.22 and 10,467.32 is: 14,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.76 : 26,015.22 = 10,467.32 : x
  2. Step 2: Convert to fraction form
    18,850.76/26,015.22 = 10,467.32/x
  3. Step 3: Cross multiply
    18,850.76x = 26,015.22 × 10,467.32
  4. Step 4: Simplify right side
    18,850.76x = 272,309,632.61
  5. Step 5: Solve for x
    x = 272,309,632.61/18,850.76
  6. Step 6: Final answer
    x = 14,445.55

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Half scale
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Double scale
Find fourth proportional to 18,851.76, 26,016.60 and 10,468.32
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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.