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Finding the Fourth Proportional to 56,590.84, 84,876.84 and 17,138.58

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Solution

The fourth proportional to 56,590.84, 84,876.84 and 17,138.58 is: 25,705.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,590.84 : 84,876.84 = 17,138.58 : x
  2. Step 2: Convert to fraction form
    56,590.84/84,876.84 = 17,138.58/x
  3. Step 3: Cross multiply
    56,590.84x = 84,876.84 × 17,138.58
  4. Step 4: Simplify right side
    56,590.84x = 1,454,668,512.49
  5. Step 5: Solve for x
    x = 1,454,668,512.49/56,590.84
  6. Step 6: Final answer
    x = 25,705.02

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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.