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Finding the Fourth Proportional to 8,041.96, 11,098.50 and 5,390.44

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Solution

The fourth proportional to 8,041.96, 11,098.50 and 5,390.44 is: 7,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,041.96 : 11,098.50 = 5,390.44 : x
  2. Step 2: Convert to fraction form
    8,041.96/11,098.50 = 5,390.44/x
  3. Step 3: Cross multiply
    8,041.96x = 11,098.50 × 5,390.44
  4. Step 4: Simplify right side
    8,041.96x = 59,825,798.34
  5. Step 5: Solve for x
    x = 59,825,798.34/8,041.96
  6. Step 6: Final answer
    x = 7,439.21

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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.