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Finding the Fourth Proportional to 9,253,338.52, 12,769,605.54 and 5,178,957.52

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Solution

The fourth proportional to 9,253,338.52, 12,769,605.54 and 5,178,957.52 is: 7,146,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,253,338.52 : 12,769,605.54 = 5,178,957.52 : x
  2. Step 2: Convert to fraction form
    9,253,338.52/12,769,605.54 = 5,178,957.52/x
  3. Step 3: Cross multiply
    9,253,338.52x = 12,769,605.54 × 5,178,957.52
  4. Step 4: Simplify right side
    9,253,338.52x = 66,133,244,638,816.65
  5. Step 5: Solve for x
    x = 66,133,244,638,816.65/9,253,338.52
  6. Step 6: Final answer
    x = 7,146,960.47

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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.