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Finding the Fourth Proportional to 18,062.75, 24,929.10 and 10,105.51

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Solution

The fourth proportional to 18,062.75, 24,929.10 and 10,105.51 is: 13,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,062.75 : 24,929.10 = 10,105.51 : x
  2. Step 2: Convert to fraction form
    18,062.75/24,929.10 = 10,105.51/x
  3. Step 3: Cross multiply
    18,062.75x = 24,929.10 × 10,105.51
  4. Step 4: Simplify right side
    18,062.75x = 251,921,269.34
  5. Step 5: Solve for x
    x = 251,921,269.34/18,062.75
  6. Step 6: Final answer
    x = 13,947.01

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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.