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Finding the Fourth Proportional to 18,842.63, 26,004.12 and 10,885.46

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Solution

The fourth proportional to 18,842.63, 26,004.12 and 10,885.46 is: 15,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.63 : 26,004.12 = 10,885.46 : x
  2. Step 2: Convert to fraction form
    18,842.63/26,004.12 = 10,885.46/x
  3. Step 3: Cross multiply
    18,842.63x = 26,004.12 × 10,885.46
  4. Step 4: Simplify right side
    18,842.63x = 283,066,808.10
  5. Step 5: Solve for x
    x = 283,066,808.10/18,842.63
  6. Step 6: Final answer
    x = 15,022.68

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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.