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Finding the Third Proportional to 4,075.31 and 6,312.94

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Solution

The third proportional to 4,075.31 and 6,312.94 is: 9,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075.31 : 6,312.94 = 6,312.94 : x
  2. Step 2: Convert to fraction form
    4,075.31/6,312.94 = 6,312.94/x
  3. Step 3: Cross multiply
    4,075.31x = 6,312.94 × 6,312.94
  4. Step 4: Simplify right side
    4,075.31x = 39,853,179.88
  5. Step 5: Solve for x
    x = 39,853,179.88/4,075.31
  6. Step 6: Final answer
    x = 9,779.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.