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Finding the Fourth Proportional to 7,159.59, 10,741.01 and 5,409.99

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Solution

The fourth proportional to 7,159.59, 10,741.01 and 5,409.99 is: 8,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.59 : 10,741.01 = 5,409.99 : x
  2. Step 2: Convert to fraction form
    7,159.59/10,741.01 = 5,409.99/x
  3. Step 3: Cross multiply
    7,159.59x = 10,741.01 × 5,409.99
  4. Step 4: Simplify right side
    7,159.59x = 58,108,729.64
  5. Step 5: Solve for x
    x = 58,108,729.64/7,159.59
  6. Step 6: Final answer
    x = 8,116.21

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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.