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Finding the Fourth Proportional to 3,470.64, 4,788.48 and 2,073.12

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Solution

The fourth proportional to 3,470.64, 4,788.48 and 2,073.12 is: 2,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.64 : 4,788.48 = 2,073.12 : x
  2. Step 2: Convert to fraction form
    3,470.64/4,788.48 = 2,073.12/x
  3. Step 3: Cross multiply
    3,470.64x = 4,788.48 × 2,073.12
  4. Step 4: Simplify right side
    3,470.64x = 9,927,093.66
  5. Step 5: Solve for x
    x = 9,927,093.66/3,470.64
  6. Step 6: Final answer
    x = 2,860.31

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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.