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Finding the Third Proportional to 3,453.19 and 5,356.13

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Solution

The third proportional to 3,453.19 and 5,356.13 is: 8,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.19 : 5,356.13 = 5,356.13 : x
  2. Step 2: Convert to fraction form
    3,453.19/5,356.13 = 5,356.13/x
  3. Step 3: Cross multiply
    3,453.19x = 5,356.13 × 5,356.13
  4. Step 4: Simplify right side
    3,453.19x = 28,688,075.02
  5. Step 5: Solve for x
    x = 28,688,075.02/3,453.19
  6. Step 6: Final answer
    x = 8,307.71

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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.