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Finding the Fourth Proportional to 5,669.15, 8,503.74 and 1,720.44

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Solution

The fourth proportional to 5,669.15, 8,503.74 and 1,720.44 is: 2,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.15 : 8,503.74 = 1,720.44 : x
  2. Step 2: Convert to fraction form
    5,669.15/8,503.74 = 1,720.44/x
  3. Step 3: Cross multiply
    5,669.15x = 8,503.74 × 1,720.44
  4. Step 4: Simplify right side
    5,669.15x = 14,630,174.45
  5. Step 5: Solve for x
    x = 14,630,174.45/5,669.15
  6. Step 6: Final answer
    x = 2,580.66

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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.