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Finding the Fourth Proportional to 39,079.70, 53,930.99 and 23,980.70

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Solution

The fourth proportional to 39,079.70, 53,930.99 and 23,980.70 is: 33,093.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,079.70 : 53,930.99 = 23,980.70 : x
  2. Step 2: Convert to fraction form
    39,079.70/53,930.99 = 23,980.70/x
  3. Step 3: Cross multiply
    39,079.70x = 53,930.99 × 23,980.70
  4. Step 4: Simplify right side
    39,079.70x = 1,293,302,951.78
  5. Step 5: Solve for x
    x = 1,293,302,951.78/39,079.70
  6. Step 6: Final answer
    x = 33,093.98

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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.