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Finding the Fourth Proportional to 77,452.54, 116,166.75 and 21,296.86

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Solution

The fourth proportional to 77,452.54, 116,166.75 and 21,296.86 is: 31,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,452.54 : 116,166.75 = 21,296.86 : x
  2. Step 2: Convert to fraction form
    77,452.54/116,166.75 = 21,296.86/x
  3. Step 3: Cross multiply
    77,452.54x = 116,166.75 × 21,296.86
  4. Step 4: Simplify right side
    77,452.54x = 2,473,987,011.41
  5. Step 5: Solve for x
    x = 2,473,987,011.41/77,452.54
  6. Step 6: Final answer
    x = 31,941.97

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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.