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Finding the Fourth Proportional to 6,374.87, 8,775.48 and 5,530.60

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Solution

The fourth proportional to 6,374.87, 8,775.48 and 5,530.60 is: 7,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.87 : 8,775.48 = 5,530.60 : x
  2. Step 2: Convert to fraction form
    6,374.87/8,775.48 = 5,530.60/x
  3. Step 3: Cross multiply
    6,374.87x = 8,775.48 × 5,530.60
  4. Step 4: Simplify right side
    6,374.87x = 48,533,669.69
  5. Step 5: Solve for x
    x = 48,533,669.69/6,374.87
  6. Step 6: Final answer
    x = 7,613.28

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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.