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Finding the Fourth Proportional to 69,503.82, 95,916.74 and 39,287.34

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Solution

The fourth proportional to 69,503.82, 95,916.74 and 39,287.34 is: 54,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.82 : 95,916.74 = 39,287.34 : x
  2. Step 2: Convert to fraction form
    69,503.82/95,916.74 = 39,287.34/x
  3. Step 3: Cross multiply
    69,503.82x = 95,916.74 × 39,287.34
  4. Step 4: Simplify right side
    69,503.82x = 3,768,313,379.63
  5. Step 5: Solve for x
    x = 3,768,313,379.63/69,503.82
  6. Step 6: Final answer
    x = 54,217.36

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1.5x scale

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.