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Finding the Fourth Proportional to 7,203,725.94, 9,941,011.18 and 3,940,512.10

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Solution

The fourth proportional to 7,203,725.94, 9,941,011.18 and 3,940,512.10 is: 5,437,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203,725.94 : 9,941,011.18 = 3,940,512.10 : x
  2. Step 2: Convert to fraction form
    7,203,725.94/9,941,011.18 = 3,940,512.10/x
  3. Step 3: Cross multiply
    7,203,725.94x = 9,941,011.18 × 3,940,512.10
  4. Step 4: Simplify right side
    7,203,725.94x = 39,172,674,828,487.64
  5. Step 5: Solve for x
    x = 39,172,674,828,487.64/7,203,725.94
  6. Step 6: Final answer
    x = 5,437,835.25

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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.