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Finding the Fourth Proportional to 7,444.60, 11,142.60 and 5,792.20

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Solution

The fourth proportional to 7,444.60, 11,142.60 and 5,792.20 is: 8,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,444.60 : 11,142.60 = 5,792.20 : x
  2. Step 2: Convert to fraction form
    7,444.60/11,142.60 = 5,792.20/x
  3. Step 3: Cross multiply
    7,444.60x = 11,142.60 × 5,792.20
  4. Step 4: Simplify right side
    7,444.60x = 64,540,167.72
  5. Step 5: Solve for x
    x = 64,540,167.72/7,444.60
  6. Step 6: Final answer
    x = 8,669.39

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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.