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Finding the Fourth Proportional to 7,537.60, 10,404.18 and 4,885

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Solution

The fourth proportional to 7,537.60, 10,404.18 and 4,885 is: 6,742.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,537.60 : 10,404.18 = 4,885 : x
  2. Step 2: Convert to fraction form
    7,537.60/10,404.18 = 4,885/x
  3. Step 3: Cross multiply
    7,537.60x = 10,404.18 × 4,885
  4. Step 4: Simplify right side
    7,537.60x = 50,824,419.30
  5. Step 5: Solve for x
    x = 50,824,419.30/7,537.60
  6. Step 6: Final answer
    x = 6,742.79

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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.