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Finding the Fourth Proportional to 1,758.17, 2,644.55 and 1,590.50

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Solution

The fourth proportional to 1,758.17, 2,644.55 and 1,590.50 is: 2,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.17 : 2,644.55 = 1,590.50 : x
  2. Step 2: Convert to fraction form
    1,758.17/2,644.55 = 1,590.50/x
  3. Step 3: Cross multiply
    1,758.17x = 2,644.55 × 1,590.50
  4. Step 4: Simplify right side
    1,758.17x = 4,206,161.40
  5. Step 5: Solve for x
    x = 4,206,161.40/1,758.17
  6. Step 6: Final answer
    x = 2,392.35

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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.