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Finding the Fourth Proportional to 13,080.61, 19,617.46 and 5,683.34

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Solution

The fourth proportional to 13,080.61, 19,617.46 and 5,683.34 is: 8,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.61 : 19,617.46 = 5,683.34 : x
  2. Step 2: Convert to fraction form
    13,080.61/19,617.46 = 5,683.34/x
  3. Step 3: Cross multiply
    13,080.61x = 19,617.46 × 5,683.34
  4. Step 4: Simplify right side
    13,080.61x = 111,492,674.78
  5. Step 5: Solve for x
    x = 111,492,674.78/13,080.61
  6. Step 6: Final answer
    x = 8,523.50

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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.