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Finding the Fourth Proportional to 18,042.78, 24,899.81 and 10,085.01

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Solution

The fourth proportional to 18,042.78, 24,899.81 and 10,085.01 is: 13,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.78 : 24,899.81 = 10,085.01 : x
  2. Step 2: Convert to fraction form
    18,042.78/24,899.81 = 10,085.01/x
  3. Step 3: Cross multiply
    18,042.78x = 24,899.81 × 10,085.01
  4. Step 4: Simplify right side
    18,042.78x = 251,114,733.56
  5. Step 5: Solve for x
    x = 251,114,733.56/18,042.78
  6. Step 6: Final answer
    x = 13,917.74

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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.