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Finding the Fourth Proportional to 5,503.90, 8,259.90 and 3,426.93

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Solution

The fourth proportional to 5,503.90, 8,259.90 and 3,426.93 is: 5,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.90 : 8,259.90 = 3,426.93 : x
  2. Step 2: Convert to fraction form
    5,503.90/8,259.90 = 3,426.93/x
  3. Step 3: Cross multiply
    5,503.90x = 8,259.90 × 3,426.93
  4. Step 4: Simplify right side
    5,503.90x = 28,306,099.11
  5. Step 5: Solve for x
    x = 28,306,099.11/5,503.90
  6. Step 6: Final answer
    x = 5,142.92

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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.