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Finding the Fourth Proportional to 5,316.66, 7,971.21 and 2,026.98

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Solution

The fourth proportional to 5,316.66, 7,971.21 and 2,026.98 is: 3,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.66 : 7,971.21 = 2,026.98 : x
  2. Step 2: Convert to fraction form
    5,316.66/7,971.21 = 2,026.98/x
  3. Step 3: Cross multiply
    5,316.66x = 7,971.21 × 2,026.98
  4. Step 4: Simplify right side
    5,316.66x = 16,157,483.25
  5. Step 5: Solve for x
    x = 16,157,483.25/5,316.66
  6. Step 6: Final answer
    x = 3,039.03

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Why These Related Problems?

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