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Finding the Fourth Proportional to 18,713.99, 25,829.64 and 12,341.73

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Solution

The fourth proportional to 18,713.99, 25,829.64 and 12,341.73 is: 17,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.99 : 25,829.64 = 12,341.73 : x
  2. Step 2: Convert to fraction form
    18,713.99/25,829.64 = 12,341.73/x
  3. Step 3: Cross multiply
    18,713.99x = 25,829.64 × 12,341.73
  4. Step 4: Simplify right side
    18,713.99x = 318,782,409.16
  5. Step 5: Solve for x
    x = 318,782,409.16/18,713.99
  6. Step 6: Final answer
    x = 17,034.45

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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.