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Finding the Fourth Proportional to 4,783.45, 7,176.99 and 4,319.62

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Solution

The fourth proportional to 4,783.45, 7,176.99 and 4,319.62 is: 6,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.45 : 7,176.99 = 4,319.62 : x
  2. Step 2: Convert to fraction form
    4,783.45/7,176.99 = 4,319.62/x
  3. Step 3: Cross multiply
    4,783.45x = 7,176.99 × 4,319.62
  4. Step 4: Simplify right side
    4,783.45x = 31,001,851.60
  5. Step 5: Solve for x
    x = 31,001,851.60/4,783.45
  6. Step 6: Final answer
    x = 6,481.07

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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.