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Finding the Fourth Proportional to 3,146, 4,334.56 and 2,345.92

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Solution

The fourth proportional to 3,146, 4,334.56 and 2,345.92 is: 3,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146 : 4,334.56 = 2,345.92 : x
  2. Step 2: Convert to fraction form
    3,146/4,334.56 = 2,345.92/x
  3. Step 3: Cross multiply
    3,146x = 4,334.56 × 2,345.92
  4. Step 4: Simplify right side
    3,146x = 10,168,531.00
  5. Step 5: Solve for x
    x = 10,168,531.00/3,146
  6. Step 6: Final answer
    x = 3,232.21

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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.