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Finding the Fourth Proportional to 5,157.60, 7,110.60 and 4,098.88

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Solution

The fourth proportional to 5,157.60, 7,110.60 and 4,098.88 is: 5,650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.60 : 7,110.60 = 4,098.88 : x
  2. Step 2: Convert to fraction form
    5,157.60/7,110.60 = 4,098.88/x
  3. Step 3: Cross multiply
    5,157.60x = 7,110.60 × 4,098.88
  4. Step 4: Simplify right side
    5,157.60x = 29,145,475.41
  5. Step 5: Solve for x
    x = 29,145,475.41/5,157.60
  6. Step 6: Final answer
    x = 5,650.98

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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.