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Finding the Fourth Proportional to 18,012.75, 24,857.17 and 10,055.71

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Solution

The fourth proportional to 18,012.75, 24,857.17 and 10,055.71 is: 13,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.75 : 24,857.17 = 10,055.71 : x
  2. Step 2: Convert to fraction form
    18,012.75/24,857.17 = 10,055.71/x
  3. Step 3: Cross multiply
    18,012.75x = 24,857.17 × 10,055.71
  4. Step 4: Simplify right side
    18,012.75x = 249,956,492.94
  5. Step 5: Solve for x
    x = 249,956,492.94/18,012.75
  6. Step 6: Final answer
    x = 13,876.64

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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.