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Finding the Fourth Proportional to 5,697.60, 8,538.40 and 4,529.60

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Solution

The fourth proportional to 5,697.60, 8,538.40 and 4,529.60 is: 6,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,697.60 : 8,538.40 = 4,529.60 : x
  2. Step 2: Convert to fraction form
    5,697.60/8,538.40 = 4,529.60/x
  3. Step 3: Cross multiply
    5,697.60x = 8,538.40 × 4,529.60
  4. Step 4: Simplify right side
    5,697.60x = 38,675,536.64
  5. Step 5: Solve for x
    x = 38,675,536.64/5,697.60
  6. Step 6: Final answer
    x = 6,788.04

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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.