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Finding the Fourth Proportional to 1,874.63, 2,587.59 and 1,176

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Solution

The fourth proportional to 1,874.63, 2,587.59 and 1,176 is: 1,623.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.63 : 2,587.59 = 1,176 : x
  2. Step 2: Convert to fraction form
    1,874.63/2,587.59 = 1,176/x
  3. Step 3: Cross multiply
    1,874.63x = 2,587.59 × 1,176
  4. Step 4: Simplify right side
    1,874.63x = 3,043,005.84
  5. Step 5: Solve for x
    x = 3,043,005.84/1,874.63
  6. Step 6: Final answer
    x = 1,623.26

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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.