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Finding the Fourth Proportional to 14,055.90, 21,063 and 5,725.74

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Solution

The fourth proportional to 14,055.90, 21,063 and 5,725.74 is: 8,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.90 : 21,063 = 5,725.74 : x
  2. Step 2: Convert to fraction form
    14,055.90/21,063 = 5,725.74/x
  3. Step 3: Cross multiply
    14,055.90x = 21,063 × 5,725.74
  4. Step 4: Simplify right side
    14,055.90x = 120,601,261.62
  5. Step 5: Solve for x
    x = 120,601,261.62/14,055.90
  6. Step 6: Final answer
    x = 8,580.12

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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.