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Finding the Third Proportional to 545.06 and 1,210.50

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Solution

The third proportional to 545.06 and 1,210.50 is: 2,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.06 : 1,210.50 = 1,210.50 : x
  2. Step 2: Convert to fraction form
    545.06/1,210.50 = 1,210.50/x
  3. Step 3: Cross multiply
    545.06x = 1,210.50 × 1,210.50
  4. Step 4: Simplify right side
    545.06x = 1,465,310.25
  5. Step 5: Solve for x
    x = 1,465,310.25/545.06
  6. Step 6: Final answer
    x = 2,688.33

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.