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Finding the Fourth Proportional to 7,231.94, 9,988.30 and 4,869.98

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Solution

The fourth proportional to 7,231.94, 9,988.30 and 4,869.98 is: 6,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.94 : 9,988.30 = 4,869.98 : x
  2. Step 2: Convert to fraction form
    7,231.94/9,988.30 = 4,869.98/x
  3. Step 3: Cross multiply
    7,231.94x = 9,988.30 × 4,869.98
  4. Step 4: Simplify right side
    7,231.94x = 48,642,821.23
  5. Step 5: Solve for x
    x = 48,642,821.23/7,231.94
  6. Step 6: Final answer
    x = 6,726.11

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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.