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Finding the Fourth Proportional to 69,256.65, 95,582.60 and 39,047.79

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Solution

The fourth proportional to 69,256.65, 95,582.60 and 39,047.79 is: 53,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,256.65 : 95,582.60 = 39,047.79 : x
  2. Step 2: Convert to fraction form
    69,256.65/95,582.60 = 39,047.79/x
  3. Step 3: Cross multiply
    69,256.65x = 95,582.60 × 39,047.79
  4. Step 4: Simplify right side
    69,256.65x = 3,732,289,097.22
  5. Step 5: Solve for x
    x = 3,732,289,097.22/69,256.65
  6. Step 6: Final answer
    x = 53,890.70

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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.