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Finding the Fourth Proportional to 18,404.96, 27,586.80 and 7,303.20

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Solution

The fourth proportional to 18,404.96, 27,586.80 and 7,303.20 is: 10,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.96 : 27,586.80 = 7,303.20 : x
  2. Step 2: Convert to fraction form
    18,404.96/27,586.80 = 7,303.20/x
  3. Step 3: Cross multiply
    18,404.96x = 27,586.80 × 7,303.20
  4. Step 4: Simplify right side
    18,404.96x = 201,471,917.76
  5. Step 5: Solve for x
    x = 201,471,917.76/18,404.96
  6. Step 6: Final answer
    x = 10,946.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.