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Finding the Fourth Proportional to 13,773.53, 19,007.53 and 7,485.91

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Solution

The fourth proportional to 13,773.53, 19,007.53 and 7,485.91 is: 10,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.53 : 19,007.53 = 7,485.91 : x
  2. Step 2: Convert to fraction form
    13,773.53/19,007.53 = 7,485.91/x
  3. Step 3: Cross multiply
    13,773.53x = 19,007.53 × 7,485.91
  4. Step 4: Simplify right side
    13,773.53x = 142,288,526.44
  5. Step 5: Solve for x
    x = 142,288,526.44/13,773.53
  6. Step 6: Final answer
    x = 10,330.58

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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.