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Finding the Fourth Proportional to 18,125.32, 25,013.14 and 10,059.09

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Solution

The fourth proportional to 18,125.32, 25,013.14 and 10,059.09 is: 13,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.32 : 25,013.14 = 10,059.09 : x
  2. Step 2: Convert to fraction form
    18,125.32/25,013.14 = 10,059.09/x
  3. Step 3: Cross multiply
    18,125.32x = 25,013.14 × 10,059.09
  4. Step 4: Simplify right side
    18,125.32x = 251,609,401.29
  5. Step 5: Solve for x
    x = 251,609,401.29/18,125.32
  6. Step 6: Final answer
    x = 13,881.65

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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.