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Finding the Third Proportional to 27,691,726.50 and 42,989,035.50

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Solution

The third proportional to 27,691,726.50 and 42,989,035.50 is: 66,736,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691,726.50 : 42,989,035.50 = 42,989,035.50 : x
  2. Step 2: Convert to fraction form
    27,691,726.50/42,989,035.50 = 42,989,035.50/x
  3. Step 3: Cross multiply
    27,691,726.50x = 42,989,035.50 × 42,989,035.50
  4. Step 4: Simplify right side
    27,691,726.50x = 1,848,057,173,220,260.25
  5. Step 5: Solve for x
    x = 1,848,057,173,220,260.25/27,691,726.50
  6. Step 6: Final answer
    x = 66,736,798.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.