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Finding the Fourth Proportional to 1,523.90, 2,104.01 and 956.98

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Solution

The fourth proportional to 1,523.90, 2,104.01 and 956.98 is: 1,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.90 : 2,104.01 = 956.98 : x
  2. Step 2: Convert to fraction form
    1,523.90/2,104.01 = 956.98/x
  3. Step 3: Cross multiply
    1,523.90x = 2,104.01 × 956.98
  4. Step 4: Simplify right side
    1,523.90x = 2,013,483.29
  5. Step 5: Solve for x
    x = 2,013,483.29/1,523.90
  6. Step 6: Final answer
    x = 1,321.27

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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.