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Finding the Fourth Proportional to 26,408.69, 36,443.99 and 15,230.69

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Solution

The fourth proportional to 26,408.69, 36,443.99 and 15,230.69 is: 21,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,408.69 : 36,443.99 = 15,230.69 : x
  2. Step 2: Convert to fraction form
    26,408.69/36,443.99 = 15,230.69/x
  3. Step 3: Cross multiply
    26,408.69x = 36,443.99 × 15,230.69
  4. Step 4: Simplify right side
    26,408.69x = 555,067,114.05
  5. Step 5: Solve for x
    x = 555,067,114.05/26,408.69
  6. Step 6: Final answer
    x = 21,018.35

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Half scale
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Double scale
Find fourth proportional to 26,409.69, 36,445.37 and 15,231.69
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.