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Finding the Fourth Proportional to 5,762.75, 7,956.43 and 3,405.65

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Solution

The fourth proportional to 5,762.75, 7,956.43 and 3,405.65 is: 4,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,762.75 : 7,956.43 = 3,405.65 : x
  2. Step 2: Convert to fraction form
    5,762.75/7,956.43 = 3,405.65/x
  3. Step 3: Cross multiply
    5,762.75x = 7,956.43 × 3,405.65
  4. Step 4: Simplify right side
    5,762.75x = 27,096,767.53
  5. Step 5: Solve for x
    x = 27,096,767.53/5,762.75
  6. Step 6: Final answer
    x = 4,702.06

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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.