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Finding the Fourth Proportional to 5,405.94, 7,460.19 and 2,921.94

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Solution

The fourth proportional to 5,405.94, 7,460.19 and 2,921.94 is: 4,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.94 : 7,460.19 = 2,921.94 : x
  2. Step 2: Convert to fraction form
    5,405.94/7,460.19 = 2,921.94/x
  3. Step 3: Cross multiply
    5,405.94x = 7,460.19 × 2,921.94
  4. Step 4: Simplify right side
    5,405.94x = 21,798,227.57
  5. Step 5: Solve for x
    x = 21,798,227.57/5,405.94
  6. Step 6: Final answer
    x = 4,032.27

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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.