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Finding the Fourth Proportional to 11,374.63, 15,697.10 and 6,659.01

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Solution

The fourth proportional to 11,374.63, 15,697.10 and 6,659.01 is: 9,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,374.63 : 15,697.10 = 6,659.01 : x
  2. Step 2: Convert to fraction form
    11,374.63/15,697.10 = 6,659.01/x
  3. Step 3: Cross multiply
    11,374.63x = 15,697.10 × 6,659.01
  4. Step 4: Simplify right side
    11,374.63x = 104,527,145.87
  5. Step 5: Solve for x
    x = 104,527,145.87/11,374.63
  6. Step 6: Final answer
    x = 9,189.50

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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.