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Finding the Fourth Proportional to 52,709.40, 79,074.90 and 17,674.20

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Solution

The fourth proportional to 52,709.40, 79,074.90 and 17,674.20 is: 26,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,709.40 : 79,074.90 = 17,674.20 : x
  2. Step 2: Convert to fraction form
    52,709.40/79,074.90 = 17,674.20/x
  3. Step 3: Cross multiply
    52,709.40x = 79,074.90 × 17,674.20
  4. Step 4: Simplify right side
    52,709.40x = 1,397,585,597.58
  5. Step 5: Solve for x
    x = 1,397,585,597.58/52,709.40
  6. Step 6: Final answer
    x = 26,514.92

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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.