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Finding the Fourth Proportional to 18,959.75, 26,164.43 and 10,461.87

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Solution

The fourth proportional to 18,959.75, 26,164.43 and 10,461.87 is: 14,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.75 : 26,164.43 = 10,461.87 : x
  2. Step 2: Convert to fraction form
    18,959.75/26,164.43 = 10,461.87/x
  3. Step 3: Cross multiply
    18,959.75x = 26,164.43 × 10,461.87
  4. Step 4: Simplify right side
    18,959.75x = 273,728,802.54
  5. Step 5: Solve for x
    x = 273,728,802.54/18,959.75
  6. Step 6: Final answer
    x = 14,437.36

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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.