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Finding the Fourth Proportional to 18,730.32, 25,845.64 and 10,346.32

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Solution

The fourth proportional to 18,730.32, 25,845.64 and 10,346.32 is: 14,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.32 : 25,845.64 = 10,346.32 : x
  2. Step 2: Convert to fraction form
    18,730.32/25,845.64 = 10,346.32/x
  3. Step 3: Cross multiply
    18,730.32x = 25,845.64 × 10,346.32
  4. Step 4: Simplify right side
    18,730.32x = 267,407,262.04
  5. Step 5: Solve for x
    x = 267,407,262.04/18,730.32
  6. Step 6: Final answer
    x = 14,276.71

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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.