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Finding the Fourth Proportional to 12,841.18, 17,722.02 and 7,804.24

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Solution

The fourth proportional to 12,841.18, 17,722.02 and 7,804.24 is: 10,770.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.18 : 17,722.02 = 7,804.24 : x
  2. Step 2: Convert to fraction form
    12,841.18/17,722.02 = 7,804.24/x
  3. Step 3: Cross multiply
    12,841.18x = 17,722.02 × 7,804.24
  4. Step 4: Simplify right side
    12,841.18x = 138,306,897.36
  5. Step 5: Solve for x
    x = 138,306,897.36/12,841.18
  6. Step 6: Final answer
    x = 10,770.58

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1.5x scale

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.