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Finding the Fourth Proportional to 5,487.89, 7,574.45 and 3,470.02

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Solution

The fourth proportional to 5,487.89, 7,574.45 and 3,470.02 is: 4,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.89 : 7,574.45 = 3,470.02 : x
  2. Step 2: Convert to fraction form
    5,487.89/7,574.45 = 3,470.02/x
  3. Step 3: Cross multiply
    5,487.89x = 7,574.45 × 3,470.02
  4. Step 4: Simplify right side
    5,487.89x = 26,283,492.99
  5. Step 5: Solve for x
    x = 26,283,492.99/5,487.89
  6. Step 6: Final answer
    x = 4,789.36

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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.