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Finding the Third Proportional to 12,963,570.75 and 28,318,990.50

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Solution

The third proportional to 12,963,570.75 and 28,318,990.50 is: 61,862,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,570.75 : 28,318,990.50 = 28,318,990.50 : x
  2. Step 2: Convert to fraction form
    12,963,570.75/28,318,990.50 = 28,318,990.50/x
  3. Step 3: Cross multiply
    12,963,570.75x = 28,318,990.50 × 28,318,990.50
  4. Step 4: Simplify right side
    12,963,570.75x = 801,965,222,939,090.25
  5. Step 5: Solve for x
    x = 801,965,222,939,090.25/12,963,570.75
  6. Step 6: Final answer
    x = 61,862,988.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.