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Finding the Fourth Proportional to 9,791,954.22, 13,512,628.22 and 5,440,928.78

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Solution

The fourth proportional to 9,791,954.22, 13,512,628.22 and 5,440,928.78 is: 7,508,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791,954.22 : 13,512,628.22 = 5,440,928.78 : x
  2. Step 2: Convert to fraction form
    9,791,954.22/13,512,628.22 = 5,440,928.78/x
  3. Step 3: Cross multiply
    9,791,954.22x = 13,512,628.22 × 5,440,928.78
  4. Step 4: Simplify right side
    9,791,954.22x = 73,521,247,775,638.17
  5. Step 5: Solve for x
    x = 73,521,247,775,638.17/9,791,954.22
  6. Step 6: Final answer
    x = 7,508,332.47

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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.