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Finding the Fourth Proportional to 10,649.55, 15,973.03 and 2,858.97

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Solution

The fourth proportional to 10,649.55, 15,973.03 and 2,858.97 is: 4,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.55 : 15,973.03 = 2,858.97 : x
  2. Step 2: Convert to fraction form
    10,649.55/15,973.03 = 2,858.97/x
  3. Step 3: Cross multiply
    10,649.55x = 15,973.03 × 2,858.97
  4. Step 4: Simplify right side
    10,649.55x = 45,666,413.58
  5. Step 5: Solve for x
    x = 45,666,413.58/10,649.55
  6. Step 6: Final answer
    x = 4,288.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.