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Finding the Fourth Proportional to 17,205.60, 25,813.26 and 6,678.84

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Solution

The fourth proportional to 17,205.60, 25,813.26 and 6,678.84 is: 10,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.60 : 25,813.26 = 6,678.84 : x
  2. Step 2: Convert to fraction form
    17,205.60/25,813.26 = 6,678.84/x
  3. Step 3: Cross multiply
    17,205.60x = 25,813.26 × 6,678.84
  4. Step 4: Simplify right side
    17,205.60x = 172,402,633.42
  5. Step 5: Solve for x
    x = 172,402,633.42/17,205.60
  6. Step 6: Final answer
    x = 10,020.15

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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.