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Finding the Fourth Proportional to 12,762.63, 19,057.92 and 10,427.23

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Solution

The fourth proportional to 12,762.63, 19,057.92 and 10,427.23 is: 15,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.63 : 19,057.92 = 10,427.23 : x
  2. Step 2: Convert to fraction form
    12,762.63/19,057.92 = 10,427.23/x
  3. Step 3: Cross multiply
    12,762.63x = 19,057.92 × 10,427.23
  4. Step 4: Simplify right side
    12,762.63x = 198,721,299.88
  5. Step 5: Solve for x
    x = 198,721,299.88/12,762.63
  6. Step 6: Final answer
    x = 15,570.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.