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Finding the Fourth Proportional to 15,771.01, 21,763 and 9,051.91

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Solution

The fourth proportional to 15,771.01, 21,763 and 9,051.91 is: 12,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.01 : 21,763 = 9,051.91 : x
  2. Step 2: Convert to fraction form
    15,771.01/21,763 = 9,051.91/x
  3. Step 3: Cross multiply
    15,771.01x = 21,763 × 9,051.91
  4. Step 4: Simplify right side
    15,771.01x = 196,996,717.33
  5. Step 5: Solve for x
    x = 196,996,717.33/15,771.01
  6. Step 6: Final answer
    x = 12,491.07

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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.