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Finding the Fourth Proportional to 8,731.95, 13,098.47 and 4,344.99

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Solution

The fourth proportional to 8,731.95, 13,098.47 and 4,344.99 is: 6,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.95 : 13,098.47 = 4,344.99 : x
  2. Step 2: Convert to fraction form
    8,731.95/13,098.47 = 4,344.99/x
  3. Step 3: Cross multiply
    8,731.95x = 13,098.47 × 4,344.99
  4. Step 4: Simplify right side
    8,731.95x = 56,912,699.44
  5. Step 5: Solve for x
    x = 56,912,699.44/8,731.95
  6. Step 6: Final answer
    x = 6,517.75

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1.5x scale

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.