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Finding the Fourth Proportional to 3,573.48, 4,924.10 and 3,218.76

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Solution

The fourth proportional to 3,573.48, 4,924.10 and 3,218.76 is: 4,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.48 : 4,924.10 = 3,218.76 : x
  2. Step 2: Convert to fraction form
    3,573.48/4,924.10 = 3,218.76/x
  3. Step 3: Cross multiply
    3,573.48x = 4,924.10 × 3,218.76
  4. Step 4: Simplify right side
    3,573.48x = 15,849,496.12
  5. Step 5: Solve for x
    x = 15,849,496.12/3,573.48
  6. Step 6: Final answer
    x = 4,435.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.