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Finding the Fourth Proportional to 3,415.37, 4,713.22 and 1,923.31

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Solution

The fourth proportional to 3,415.37, 4,713.22 and 1,923.31 is: 2,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.37 : 4,713.22 = 1,923.31 : x
  2. Step 2: Convert to fraction form
    3,415.37/4,713.22 = 1,923.31/x
  3. Step 3: Cross multiply
    3,415.37x = 4,713.22 × 1,923.31
  4. Step 4: Simplify right side
    3,415.37x = 9,064,983.16
  5. Step 5: Solve for x
    x = 9,064,983.16/3,415.37
  6. Step 6: Final answer
    x = 2,654.17

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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.