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Finding the Third Proportional to 31,155 and 46,723

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Solution

The third proportional to 31,155 and 46,723 is: 70,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,155 : 46,723 = 46,723 : x
  2. Step 2: Convert to fraction form
    31,155/46,723 = 46,723/x
  3. Step 3: Cross multiply
    31,155x = 46,723 × 46,723
  4. Step 4: Simplify right side
    31,155x = 2,183,038,729
  5. Step 5: Solve for x
    x = 2,183,038,729/31,155
  6. Step 6: Final answer
    x = 70,070.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.