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Finding the Fourth Proportional to 18,842.67, 26,002.64 and 10,884.72

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Solution

The fourth proportional to 18,842.67, 26,002.64 and 10,884.72 is: 15,020.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.67 : 26,002.64 = 10,884.72 : x
  2. Step 2: Convert to fraction form
    18,842.67/26,002.64 = 10,884.72/x
  3. Step 3: Cross multiply
    18,842.67x = 26,002.64 × 10,884.72
  4. Step 4: Simplify right side
    18,842.67x = 283,031,482.87
  5. Step 5: Solve for x
    x = 283,031,482.87/18,842.67
  6. Step 6: Final answer
    x = 15,020.77

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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.