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Finding the Fourth Proportional to 58,668.54, 80,960.40 and 34,780.92

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Solution

The fourth proportional to 58,668.54, 80,960.40 and 34,780.92 is: 47,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,668.54 : 80,960.40 = 34,780.92 : x
  2. Step 2: Convert to fraction form
    58,668.54/80,960.40 = 34,780.92/x
  3. Step 3: Cross multiply
    58,668.54x = 80,960.40 × 34,780.92
  4. Step 4: Simplify right side
    58,668.54x = 2,815,877,195.57
  5. Step 5: Solve for x
    x = 2,815,877,195.57/58,668.54
  6. Step 6: Final answer
    x = 47,996.37

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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.