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Finding the Fourth Proportional to 5,433.60, 8,166.60 and 4,720.80

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Solution

The fourth proportional to 5,433.60, 8,166.60 and 4,720.80 is: 7,095.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,433.60 : 8,166.60 = 4,720.80 : x
  2. Step 2: Convert to fraction form
    5,433.60/8,166.60 = 4,720.80/x
  3. Step 3: Cross multiply
    5,433.60x = 8,166.60 × 4,720.80
  4. Step 4: Simplify right side
    5,433.60x = 38,552,885.28
  5. Step 5: Solve for x
    x = 38,552,885.28/5,433.60
  6. Step 6: Final answer
    x = 7,095.27

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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.