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Finding the Fourth Proportional to 17,779.50, 26,669.25 and 5,467.50

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Solution

The fourth proportional to 17,779.50, 26,669.25 and 5,467.50 is: 8,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.50 : 26,669.25 = 5,467.50 : x
  2. Step 2: Convert to fraction form
    17,779.50/26,669.25 = 5,467.50/x
  3. Step 3: Cross multiply
    17,779.50x = 26,669.25 × 5,467.50
  4. Step 4: Simplify right side
    17,779.50x = 145,814,124.38
  5. Step 5: Solve for x
    x = 145,814,124.38/17,779.50
  6. Step 6: Final answer
    x = 8,201.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.