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Finding the Fourth Proportional to 17,311.61, 25,966.13 and 5,465.79

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Solution

The fourth proportional to 17,311.61, 25,966.13 and 5,465.79 is: 8,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311.61 : 25,966.13 = 5,465.79 : x
  2. Step 2: Convert to fraction form
    17,311.61/25,966.13 = 5,465.79/x
  3. Step 3: Cross multiply
    17,311.61x = 25,966.13 × 5,465.79
  4. Step 4: Simplify right side
    17,311.61x = 141,925,386.36
  5. Step 5: Solve for x
    x = 141,925,386.36/17,311.61
  6. Step 6: Final answer
    x = 8,198.28

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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.