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Finding the Fourth Proportional to 69,091, 95,349.90 and 39,283

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Solution

The fourth proportional to 69,091, 95,349.90 and 39,283 is: 54,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091 : 95,349.90 = 39,283 : x
  2. Step 2: Convert to fraction form
    69,091/95,349.90 = 39,283/x
  3. Step 3: Cross multiply
    69,091x = 95,349.90 × 39,283
  4. Step 4: Simplify right side
    69,091x = 3,745,630,121.70
  5. Step 5: Solve for x
    x = 3,745,630,121.70/69,091
  6. Step 6: Final answer
    x = 54,213.00

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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.