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Finding the Fourth Proportional to 2,461.91, 3,692.90 and 707.06

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Solution

The fourth proportional to 2,461.91, 3,692.90 and 707.06 is: 1,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.91 : 3,692.90 = 707.06 : x
  2. Step 2: Convert to fraction form
    2,461.91/3,692.90 = 707.06/x
  3. Step 3: Cross multiply
    2,461.91x = 3,692.90 × 707.06
  4. Step 4: Simplify right side
    2,461.91x = 2,611,112.87
  5. Step 5: Solve for x
    x = 2,611,112.87/2,461.91
  6. Step 6: Final answer
    x = 1,060.61

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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.