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Finding the Fourth Proportional to 18,404.32, 27,588.48 and 7,307.32

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Solution

The fourth proportional to 18,404.32, 27,588.48 and 7,307.32 is: 10,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.32 : 27,588.48 = 7,307.32 : x
  2. Step 2: Convert to fraction form
    18,404.32/27,588.48 = 7,307.32/x
  3. Step 3: Cross multiply
    18,404.32x = 27,588.48 × 7,307.32
  4. Step 4: Simplify right side
    18,404.32x = 201,597,851.67
  5. Step 5: Solve for x
    x = 201,597,851.67/18,404.32
  6. Step 6: Final answer
    x = 10,953.83

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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.