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Finding the Fourth Proportional to 16,647.60, 24,955.05 and 8,315.13

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Solution

The fourth proportional to 16,647.60, 24,955.05 and 8,315.13 is: 12,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,647.60 : 24,955.05 = 8,315.13 : x
  2. Step 2: Convert to fraction form
    16,647.60/24,955.05 = 8,315.13/x
  3. Step 3: Cross multiply
    16,647.60x = 24,955.05 × 8,315.13
  4. Step 4: Simplify right side
    16,647.60x = 207,504,484.91
  5. Step 5: Solve for x
    x = 207,504,484.91/16,647.60
  6. Step 6: Final answer
    x = 12,464.53

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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.