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Finding the Fourth Proportional to 45,665.18, 62,977.11 and 28,671.00

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Solution

The fourth proportional to 45,665.18, 62,977.11 and 28,671.00 is: 39,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.18 : 62,977.11 = 28,671.00 : x
  2. Step 2: Convert to fraction form
    45,665.18/62,977.11 = 28,671.00/x
  3. Step 3: Cross multiply
    45,665.18x = 62,977.11 × 28,671.00
  4. Step 4: Simplify right side
    45,665.18x = 1,805,616,538.40
  5. Step 5: Solve for x
    x = 1,805,616,538.40/45,665.18
  6. Step 6: Final answer
    x = 39,540.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.