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Finding the Fourth Proportional to 17,918.92, 24,699.74 and 16,471.86

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Solution

The fourth proportional to 17,918.92, 24,699.74 and 16,471.86 is: 22,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.92 : 24,699.74 = 16,471.86 : x
  2. Step 2: Convert to fraction form
    17,918.92/24,699.74 = 16,471.86/x
  3. Step 3: Cross multiply
    17,918.92x = 24,699.74 × 16,471.86
  4. Step 4: Simplify right side
    17,918.92x = 406,850,484.33
  5. Step 5: Solve for x
    x = 406,850,484.33/17,918.92
  6. Step 6: Final answer
    x = 22,705.08

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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.