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Finding the Fourth Proportional to 5,665.16, 8,486.90 and 4,746.60

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Solution

The fourth proportional to 5,665.16, 8,486.90 and 4,746.60 is: 7,110.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.16 : 8,486.90 = 4,746.60 : x
  2. Step 2: Convert to fraction form
    5,665.16/8,486.90 = 4,746.60/x
  3. Step 3: Cross multiply
    5,665.16x = 8,486.90 × 4,746.60
  4. Step 4: Simplify right side
    5,665.16x = 40,283,919.54
  5. Step 5: Solve for x
    x = 40,283,919.54/5,665.16
  6. Step 6: Final answer
    x = 7,110.82

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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.