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Finding the Fourth Proportional to 4,615.65, 6,923.43 and 3,686.85

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Solution

The fourth proportional to 4,615.65, 6,923.43 and 3,686.85 is: 5,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.65 : 6,923.43 = 3,686.85 : x
  2. Step 2: Convert to fraction form
    4,615.65/6,923.43 = 3,686.85/x
  3. Step 3: Cross multiply
    4,615.65x = 6,923.43 × 3,686.85
  4. Step 4: Simplify right side
    4,615.65x = 25,525,647.90
  5. Step 5: Solve for x
    x = 25,525,647.90/4,615.65
  6. Step 6: Final answer
    x = 5,530.24

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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.