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Finding the Fourth Proportional to 12,841.54, 19,235.78 and 7,560.28

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Solution

The fourth proportional to 12,841.54, 19,235.78 and 7,560.28 is: 11,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.54 : 19,235.78 = 7,560.28 : x
  2. Step 2: Convert to fraction form
    12,841.54/19,235.78 = 7,560.28/x
  3. Step 3: Cross multiply
    12,841.54x = 19,235.78 × 7,560.28
  4. Step 4: Simplify right side
    12,841.54x = 145,427,882.82
  5. Step 5: Solve for x
    x = 145,427,882.82/12,841.54
  6. Step 6: Final answer
    x = 11,324.80

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1.5x scale

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.