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Finding the Fourth Proportional to 18,696.74, 25,801.51 and 10,739.48

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Solution

The fourth proportional to 18,696.74, 25,801.51 and 10,739.48 is: 14,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.74 : 25,801.51 = 10,739.48 : x
  2. Step 2: Convert to fraction form
    18,696.74/25,801.51 = 10,739.48/x
  3. Step 3: Cross multiply
    18,696.74x = 25,801.51 × 10,739.48
  4. Step 4: Simplify right side
    18,696.74x = 277,094,800.61
  5. Step 5: Solve for x
    x = 277,094,800.61/18,696.74
  6. Step 6: Final answer
    x = 14,820.49

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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.