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Finding the Fourth Proportional to 77,706.84, 116,560.27 and 30,992.52

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Solution

The fourth proportional to 77,706.84, 116,560.27 and 30,992.52 is: 46,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,706.84 : 116,560.27 = 30,992.52 : x
  2. Step 2: Convert to fraction form
    77,706.84/116,560.27 = 30,992.52/x
  3. Step 3: Cross multiply
    77,706.84x = 116,560.27 × 30,992.52
  4. Step 4: Simplify right side
    77,706.84x = 3,612,496,800.69
  5. Step 5: Solve for x
    x = 3,612,496,800.69/77,706.84
  6. Step 6: Final answer
    x = 46,488.79

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Double scale
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Similar ratio
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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.