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Finding the Fourth Proportional to 13,635.01, 20,451.44 and 4,869.01

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Solution

The fourth proportional to 13,635.01, 20,451.44 and 4,869.01 is: 7,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.01 : 20,451.44 = 4,869.01 : x
  2. Step 2: Convert to fraction form
    13,635.01/20,451.44 = 4,869.01/x
  3. Step 3: Cross multiply
    13,635.01x = 20,451.44 × 4,869.01
  4. Step 4: Simplify right side
    13,635.01x = 99,578,304.83
  5. Step 5: Solve for x
    x = 99,578,304.83/13,635.01
  6. Step 6: Final answer
    x = 7,303.13

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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.