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Finding the Third Proportional to 907.50 and 1,830

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Solution

The third proportional to 907.50 and 1,830 is: 3,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.50 : 1,830 = 1,830 : x
  2. Step 2: Convert to fraction form
    907.50/1,830 = 1,830/x
  3. Step 3: Cross multiply
    907.50x = 1,830 × 1,830
  4. Step 4: Simplify right side
    907.50x = 3,348,900
  5. Step 5: Solve for x
    x = 3,348,900/907.50
  6. Step 6: Final answer
    x = 3,690.25

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.