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Finding the Fourth Proportional to 3,543.86, 4,890.65 and 1,950.68

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Solution

The fourth proportional to 3,543.86, 4,890.65 and 1,950.68 is: 2,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.86 : 4,890.65 = 1,950.68 : x
  2. Step 2: Convert to fraction form
    3,543.86/4,890.65 = 1,950.68/x
  3. Step 3: Cross multiply
    3,543.86x = 4,890.65 × 1,950.68
  4. Step 4: Simplify right side
    3,543.86x = 9,540,058.94
  5. Step 5: Solve for x
    x = 9,540,058.94/3,543.86
  6. Step 6: Final answer
    x = 2,692.00

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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.