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Finding the Fourth Proportional to 16,685.81, 25,014.99 and 7,796.74

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Solution

The fourth proportional to 16,685.81, 25,014.99 and 7,796.74 is: 11,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685.81 : 25,014.99 = 7,796.74 : x
  2. Step 2: Convert to fraction form
    16,685.81/25,014.99 = 7,796.74/x
  3. Step 3: Cross multiply
    16,685.81x = 25,014.99 × 7,796.74
  4. Step 4: Simplify right side
    16,685.81x = 195,035,423.89
  5. Step 5: Solve for x
    x = 195,035,423.89/16,685.81
  6. Step 6: Final answer
    x = 11,688.70

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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.