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Finding the Fourth Proportional to 27,007.12, 40,510.44 and 8,539.12

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Solution

The fourth proportional to 27,007.12, 40,510.44 and 8,539.12 is: 12,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,007.12 : 40,510.44 = 8,539.12 : x
  2. Step 2: Convert to fraction form
    27,007.12/40,510.44 = 8,539.12/x
  3. Step 3: Cross multiply
    27,007.12x = 40,510.44 × 8,539.12
  4. Step 4: Simplify right side
    27,007.12x = 345,923,508.41
  5. Step 5: Solve for x
    x = 345,923,508.41/27,007.12
  6. Step 6: Final answer
    x = 12,808.60

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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.