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Finding the Fourth Proportional to 18,881.59, 26,050.11 and 11,708.92

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Solution

The fourth proportional to 18,881.59, 26,050.11 and 11,708.92 is: 16,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.59 : 26,050.11 = 11,708.92 : x
  2. Step 2: Convert to fraction form
    18,881.59/26,050.11 = 11,708.92/x
  3. Step 3: Cross multiply
    18,881.59x = 26,050.11 × 11,708.92
  4. Step 4: Simplify right side
    18,881.59x = 305,018,653.98
  5. Step 5: Solve for x
    x = 305,018,653.98/18,881.59
  6. Step 6: Final answer
    x = 16,154.29

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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.