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Finding the Fourth Proportional to 5,880.60, 8,820.90 and 5,540.40

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Solution

The fourth proportional to 5,880.60, 8,820.90 and 5,540.40 is: 8,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.60 : 8,820.90 = 5,540.40 : x
  2. Step 2: Convert to fraction form
    5,880.60/8,820.90 = 5,540.40/x
  3. Step 3: Cross multiply
    5,880.60x = 8,820.90 × 5,540.40
  4. Step 4: Simplify right side
    5,880.60x = 48,871,314.36
  5. Step 5: Solve for x
    x = 48,871,314.36/5,880.60
  6. Step 6: Final answer
    x = 8,310.60

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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.