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Finding the Third Proportional to 29,940 and 45,130.50

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Solution

The third proportional to 29,940 and 45,130.50 is: 68,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,940 : 45,130.50 = 45,130.50 : x
  2. Step 2: Convert to fraction form
    29,940/45,130.50 = 45,130.50/x
  3. Step 3: Cross multiply
    29,940x = 45,130.50 × 45,130.50
  4. Step 4: Simplify right side
    29,940x = 2,036,762,030.25
  5. Step 5: Solve for x
    x = 2,036,762,030.25/29,940
  6. Step 6: Final answer
    x = 68,028.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.