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Finding the Fourth Proportional to 4,111, 6,165.90 and 1,513.48

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Solution

The fourth proportional to 4,111, 6,165.90 and 1,513.48 is: 2,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111 : 6,165.90 = 1,513.48 : x
  2. Step 2: Convert to fraction form
    4,111/6,165.90 = 1,513.48/x
  3. Step 3: Cross multiply
    4,111x = 6,165.90 × 1,513.48
  4. Step 4: Simplify right side
    4,111x = 9,331,966.33
  5. Step 5: Solve for x
    x = 9,331,966.33/4,111
  6. Step 6: Final answer
    x = 2,270.00

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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.