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Finding the Fourth Proportional to 18,847.61, 26,007.77 and 10,892.39

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Solution

The fourth proportional to 18,847.61, 26,007.77 and 10,892.39 is: 15,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.61 : 26,007.77 = 10,892.39 : x
  2. Step 2: Convert to fraction form
    18,847.61/26,007.77 = 10,892.39/x
  3. Step 3: Cross multiply
    18,847.61x = 26,007.77 × 10,892.39
  4. Step 4: Simplify right side
    18,847.61x = 283,286,719.41
  5. Step 5: Solve for x
    x = 283,286,719.41/18,847.61
  6. Step 6: Final answer
    x = 15,030.38

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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.