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Finding the Third Proportional to 5,357 and 7,826.50

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Solution

The third proportional to 5,357 and 7,826.50 is: 11,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357 : 7,826.50 = 7,826.50 : x
  2. Step 2: Convert to fraction form
    5,357/7,826.50 = 7,826.50/x
  3. Step 3: Cross multiply
    5,357x = 7,826.50 × 7,826.50
  4. Step 4: Simplify right side
    5,357x = 61,254,102.25
  5. Step 5: Solve for x
    x = 61,254,102.25/5,357
  6. Step 6: Final answer
    x = 11,434.40

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.