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Finding the Fourth Proportional to 5,078.99, 6,994.47 and 4,762.55

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Solution

The fourth proportional to 5,078.99, 6,994.47 and 4,762.55 is: 6,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.99 : 6,994.47 = 4,762.55 : x
  2. Step 2: Convert to fraction form
    5,078.99/6,994.47 = 4,762.55/x
  3. Step 3: Cross multiply
    5,078.99x = 6,994.47 × 4,762.55
  4. Step 4: Simplify right side
    5,078.99x = 33,311,521.65
  5. Step 5: Solve for x
    x = 33,311,521.65/5,078.99
  6. Step 6: Final answer
    x = 6,558.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.