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Finding the Fourth Proportional to 18,857.54, 26,026.61 and 10,904.60

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Solution

The fourth proportional to 18,857.54, 26,026.61 and 10,904.60 is: 15,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.54 : 26,026.61 = 10,904.60 : x
  2. Step 2: Convert to fraction form
    18,857.54/26,026.61 = 10,904.60/x
  3. Step 3: Cross multiply
    18,857.54x = 26,026.61 × 10,904.60
  4. Step 4: Simplify right side
    18,857.54x = 283,809,781.95
  5. Step 5: Solve for x
    x = 283,809,781.95/18,857.54
  6. Step 6: Final answer
    x = 15,050.20

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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.