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Finding the Fourth Proportional to 7,176.21, 10,762.21 and 2,792.62

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Solution

The fourth proportional to 7,176.21, 10,762.21 and 2,792.62 is: 4,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.21 : 10,762.21 = 2,792.62 : x
  2. Step 2: Convert to fraction form
    7,176.21/10,762.21 = 2,792.62/x
  3. Step 3: Cross multiply
    7,176.21x = 10,762.21 × 2,792.62
  4. Step 4: Simplify right side
    7,176.21x = 30,054,762.89
  5. Step 5: Solve for x
    x = 30,054,762.89/7,176.21
  6. Step 6: Final answer
    x = 4,188.11

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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.