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Finding the Third Proportional to 45.56 and 70.03

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Solution

The third proportional to 45.56 and 70.03 is: 107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.56 : 70.03 = 70.03 : x
  2. Step 2: Convert to fraction form
    45.56/70.03 = 70.03/x
  3. Step 3: Cross multiply
    45.56x = 70.03 × 70.03
  4. Step 4: Simplify right side
    45.56x = 4,904.38
  5. Step 5: Solve for x
    x = 4,904.38/45.56
  6. Step 6: Final answer
    x = 107.64

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.