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Finding the Fourth Proportional to 4,859.42, 6,704.48 and 2,870.68

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Solution

The fourth proportional to 4,859.42, 6,704.48 and 2,870.68 is: 3,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.42 : 6,704.48 = 2,870.68 : x
  2. Step 2: Convert to fraction form
    4,859.42/6,704.48 = 2,870.68/x
  3. Step 3: Cross multiply
    4,859.42x = 6,704.48 × 2,870.68
  4. Step 4: Simplify right side
    4,859.42x = 19,246,416.65
  5. Step 5: Solve for x
    x = 19,246,416.65/4,859.42
  6. Step 6: Final answer
    x = 3,960.64

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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.