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Finding the Fourth Proportional to 17,114.77, 25,673.06 and 5,428.90

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Solution

The fourth proportional to 17,114.77, 25,673.06 and 5,428.90 is: 8,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,114.77 : 25,673.06 = 5,428.90 : x
  2. Step 2: Convert to fraction form
    17,114.77/25,673.06 = 5,428.90/x
  3. Step 3: Cross multiply
    17,114.77x = 25,673.06 × 5,428.90
  4. Step 4: Simplify right side
    17,114.77x = 139,376,475.43
  5. Step 5: Solve for x
    x = 139,376,475.43/17,114.77
  6. Step 6: Final answer
    x = 8,143.64

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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.