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Finding the Fourth Proportional to 3,644.16, 5,465.17 and 1,422.50

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Solution

The fourth proportional to 3,644.16, 5,465.17 and 1,422.50 is: 2,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.16 : 5,465.17 = 1,422.50 : x
  2. Step 2: Convert to fraction form
    3,644.16/5,465.17 = 1,422.50/x
  3. Step 3: Cross multiply
    3,644.16x = 5,465.17 × 1,422.50
  4. Step 4: Simplify right side
    3,644.16x = 7,774,204.33
  5. Step 5: Solve for x
    x = 7,774,204.33/3,644.16
  6. Step 6: Final answer
    x = 2,133.33

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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.