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Finding the Third Proportional to 1,985.63 and 3,790.88

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Solution

The third proportional to 1,985.63 and 3,790.88 is: 7,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.63 : 3,790.88 = 3,790.88 : x
  2. Step 2: Convert to fraction form
    1,985.63/3,790.88 = 3,790.88/x
  3. Step 3: Cross multiply
    1,985.63x = 3,790.88 × 3,790.88
  4. Step 4: Simplify right side
    1,985.63x = 14,370,733.27
  5. Step 5: Solve for x
    x = 14,370,733.27/1,985.63
  6. Step 6: Final answer
    x = 7,237.39

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.