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Finding the Fourth Proportional to 69,415.72, 104,123.55 and 22,668.60

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Solution

The fourth proportional to 69,415.72, 104,123.55 and 22,668.60 is: 34,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,415.72 : 104,123.55 = 22,668.60 : x
  2. Step 2: Convert to fraction form
    69,415.72/104,123.55 = 22,668.60/x
  3. Step 3: Cross multiply
    69,415.72x = 104,123.55 × 22,668.60
  4. Step 4: Simplify right side
    69,415.72x = 2,360,335,105.53
  5. Step 5: Solve for x
    x = 2,360,335,105.53/69,415.72
  6. Step 6: Final answer
    x = 34,002.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.