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Finding the Fourth Proportional to 3,487.65, 4,813.08 and 1,995.83

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Solution

The fourth proportional to 3,487.65, 4,813.08 and 1,995.83 is: 2,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.65 : 4,813.08 = 1,995.83 : x
  2. Step 2: Convert to fraction form
    3,487.65/4,813.08 = 1,995.83/x
  3. Step 3: Cross multiply
    3,487.65x = 4,813.08 × 1,995.83
  4. Step 4: Simplify right side
    3,487.65x = 9,606,089.46
  5. Step 5: Solve for x
    x = 9,606,089.46/3,487.65
  6. Step 6: Final answer
    x = 2,754.32

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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.