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Finding the Fourth Proportional to 6,620.60, 9,134.76 and 5,297

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Solution

The fourth proportional to 6,620.60, 9,134.76 and 5,297 is: 7,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.60 : 9,134.76 = 5,297 : x
  2. Step 2: Convert to fraction form
    6,620.60/9,134.76 = 5,297/x
  3. Step 3: Cross multiply
    6,620.60x = 9,134.76 × 5,297
  4. Step 4: Simplify right side
    6,620.60x = 48,386,823.72
  5. Step 5: Solve for x
    x = 48,386,823.72/6,620.60
  6. Step 6: Final answer
    x = 7,308.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.