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Finding the Third Proportional to 245.50 and 526.75

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Solution

The third proportional to 245.50 and 526.75 is: 1,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.50 : 526.75 = 526.75 : x
  2. Step 2: Convert to fraction form
    245.50/526.75 = 526.75/x
  3. Step 3: Cross multiply
    245.50x = 526.75 × 526.75
  4. Step 4: Simplify right side
    245.50x = 277,465.56
  5. Step 5: Solve for x
    x = 277,465.56/245.50
  6. Step 6: Final answer
    x = 1,130.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.