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Finding the Fourth Proportional to 12,701.80, 19,065 and 6,132.60

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Solution

The fourth proportional to 12,701.80, 19,065 and 6,132.60 is: 9,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.80 : 19,065 = 6,132.60 : x
  2. Step 2: Convert to fraction form
    12,701.80/19,065 = 6,132.60/x
  3. Step 3: Cross multiply
    12,701.80x = 19,065 × 6,132.60
  4. Step 4: Simplify right side
    12,701.80x = 116,918,019
  5. Step 5: Solve for x
    x = 116,918,019/12,701.80
  6. Step 6: Final answer
    x = 9,204.84

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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.