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Finding the Fourth Proportional to 22,941,309.49, 31,659,842.40 and 12,486,820.48

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Solution

The fourth proportional to 22,941,309.49, 31,659,842.40 and 12,486,820.48 is: 17,232,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,941,309.49 : 31,659,842.40 = 12,486,820.48 : x
  2. Step 2: Convert to fraction form
    22,941,309.49/31,659,842.40 = 12,486,820.48/x
  3. Step 3: Cross multiply
    22,941,309.49x = 31,659,842.40 × 12,486,820.48
  4. Step 4: Simplify right side
    22,941,309.49x = 395,330,768,418,168
  5. Step 5: Solve for x
    x = 395,330,768,418,168/22,941,309.49
  6. Step 6: Final answer
    x = 17,232,266.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.