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Finding the Fourth Proportional to 18,303.66, 25,250.66 and 10,749.86

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Solution

The fourth proportional to 18,303.66, 25,250.66 and 10,749.86 is: 14,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.66 : 25,250.66 = 10,749.86 : x
  2. Step 2: Convert to fraction form
    18,303.66/25,250.66 = 10,749.86/x
  3. Step 3: Cross multiply
    18,303.66x = 25,250.66 × 10,749.86
  4. Step 4: Simplify right side
    18,303.66x = 271,441,059.91
  5. Step 5: Solve for x
    x = 271,441,059.91/18,303.66
  6. Step 6: Final answer
    x = 14,829.88

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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.