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Finding the Fourth Proportional to 14,273.55, 19,697.01 and 7,900.04

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Solution

The fourth proportional to 14,273.55, 19,697.01 and 7,900.04 is: 10,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.55 : 19,697.01 = 7,900.04 : x
  2. Step 2: Convert to fraction form
    14,273.55/19,697.01 = 7,900.04/x
  3. Step 3: Cross multiply
    14,273.55x = 19,697.01 × 7,900.04
  4. Step 4: Simplify right side
    14,273.55x = 155,607,186.50
  5. Step 5: Solve for x
    x = 155,607,186.50/14,273.55
  6. Step 6: Final answer
    x = 10,901.79

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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.