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Finding the Fourth Proportional to 12,734.58, 17,572.84 and 7,069.12

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Solution

The fourth proportional to 12,734.58, 17,572.84 and 7,069.12 is: 9,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.58 : 17,572.84 = 7,069.12 : x
  2. Step 2: Convert to fraction form
    12,734.58/17,572.84 = 7,069.12/x
  3. Step 3: Cross multiply
    12,734.58x = 17,572.84 × 7,069.12
  4. Step 4: Simplify right side
    12,734.58x = 124,224,514.70
  5. Step 5: Solve for x
    x = 124,224,514.70/12,734.58
  6. Step 6: Final answer
    x = 9,754.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.