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Finding the Fourth Proportional to 39,292, 58,939.62 and 11,590

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Solution

The fourth proportional to 39,292, 58,939.62 and 11,590 is: 17,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292 : 58,939.62 = 11,590 : x
  2. Step 2: Convert to fraction form
    39,292/58,939.62 = 11,590/x
  3. Step 3: Cross multiply
    39,292x = 58,939.62 × 11,590
  4. Step 4: Simplify right side
    39,292x = 683,110,195.80
  5. Step 5: Solve for x
    x = 683,110,195.80/39,292
  6. Step 6: Final answer
    x = 17,385.48

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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.