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Finding the Fourth Proportional to 8,098.55, 11,172.18 and 4,739.31

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Solution

The fourth proportional to 8,098.55, 11,172.18 and 4,739.31 is: 6,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,098.55 : 11,172.18 = 4,739.31 : x
  2. Step 2: Convert to fraction form
    8,098.55/11,172.18 = 4,739.31/x
  3. Step 3: Cross multiply
    8,098.55x = 11,172.18 × 4,739.31
  4. Step 4: Simplify right side
    8,098.55x = 52,948,368.53
  5. Step 5: Solve for x
    x = 52,948,368.53/8,098.55
  6. Step 6: Final answer
    x = 6,538.01

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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.