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Finding the Fourth Proportional to 18,536.96, 25,581.02 and 10,039.15

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Solution

The fourth proportional to 18,536.96, 25,581.02 and 10,039.15 is: 13,854.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.96 : 25,581.02 = 10,039.15 : x
  2. Step 2: Convert to fraction form
    18,536.96/25,581.02 = 10,039.15/x
  3. Step 3: Cross multiply
    18,536.96x = 25,581.02 × 10,039.15
  4. Step 4: Simplify right side
    18,536.96x = 256,811,518.83
  5. Step 5: Solve for x
    x = 256,811,518.83/18,536.96
  6. Step 6: Final answer
    x = 13,854.03

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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.