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Finding the Fourth Proportional to 17,020.68, 25,505.04 and 7,154.60

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Solution

The fourth proportional to 17,020.68, 25,505.04 and 7,154.60 is: 10,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,020.68 : 25,505.04 = 7,154.60 : x
  2. Step 2: Convert to fraction form
    17,020.68/25,505.04 = 7,154.60/x
  3. Step 3: Cross multiply
    17,020.68x = 25,505.04 × 7,154.60
  4. Step 4: Simplify right side
    17,020.68x = 182,478,359.18
  5. Step 5: Solve for x
    x = 182,478,359.18/17,020.68
  6. Step 6: Final answer
    x = 10,720.98

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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.