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Finding the Fourth Proportional to 17,298.70, 25,899.45 and 16,812.70

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Solution

The fourth proportional to 17,298.70, 25,899.45 and 16,812.70 is: 25,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,298.70 : 25,899.45 = 16,812.70 : x
  2. Step 2: Convert to fraction form
    17,298.70/25,899.45 = 16,812.70/x
  3. Step 3: Cross multiply
    17,298.70x = 25,899.45 × 16,812.70
  4. Step 4: Simplify right side
    17,298.70x = 435,439,683.02
  5. Step 5: Solve for x
    x = 435,439,683.02/17,298.70
  6. Step 6: Final answer
    x = 25,171.82

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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.