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Finding the Fourth Proportional to 12,754,694.46, 17,601,742.46 and 7,173,047.64

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Solution

The fourth proportional to 12,754,694.46, 17,601,742.46 and 7,173,047.64 is: 9,898,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754,694.46 : 17,601,742.46 = 7,173,047.64 : x
  2. Step 2: Convert to fraction form
    12,754,694.46/17,601,742.46 = 7,173,047.64/x
  3. Step 3: Cross multiply
    12,754,694.46x = 17,601,742.46 × 7,173,047.64
  4. Step 4: Simplify right side
    12,754,694.46x = 126,258,137,296,529.94
  5. Step 5: Solve for x
    x = 126,258,137,296,529.94/12,754,694.46
  6. Step 6: Final answer
    x = 9,898,954.28

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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.