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Finding the Fourth Proportional to 18,884.57, 26,059.37 and 10,386.50

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Solution

The fourth proportional to 18,884.57, 26,059.37 and 10,386.50 is: 14,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.57 : 26,059.37 = 10,386.50 : x
  2. Step 2: Convert to fraction form
    18,884.57/26,059.37 = 10,386.50/x
  3. Step 3: Cross multiply
    18,884.57x = 26,059.37 × 10,386.50
  4. Step 4: Simplify right side
    18,884.57x = 270,665,464.28
  5. Step 5: Solve for x
    x = 270,665,464.28/18,884.57
  6. Step 6: Final answer
    x = 14,332.63

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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.