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Finding the Fourth Proportional to 3,470.48, 4,791 and 2,357.28

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Solution

The fourth proportional to 3,470.48, 4,791 and 2,357.28 is: 3,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.48 : 4,791 = 2,357.28 : x
  2. Step 2: Convert to fraction form
    3,470.48/4,791 = 2,357.28/x
  3. Step 3: Cross multiply
    3,470.48x = 4,791 × 2,357.28
  4. Step 4: Simplify right side
    3,470.48x = 11,293,728.48
  5. Step 5: Solve for x
    x = 11,293,728.48/3,470.48
  6. Step 6: Final answer
    x = 3,254.23

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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.