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Finding the Fourth Proportional to 7,807.87, 10,774.75 and 4,271.04

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Solution

The fourth proportional to 7,807.87, 10,774.75 and 4,271.04 is: 5,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.87 : 10,774.75 = 4,271.04 : x
  2. Step 2: Convert to fraction form
    7,807.87/10,774.75 = 4,271.04/x
  3. Step 3: Cross multiply
    7,807.87x = 10,774.75 × 4,271.04
  4. Step 4: Simplify right side
    7,807.87x = 46,019,388.24
  5. Step 5: Solve for x
    x = 46,019,388.24/7,807.87
  6. Step 6: Final answer
    x = 5,893.97

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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.