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Finding the Fourth Proportional to 12,736.17, 17,575.88 and 7,070.99

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Solution

The fourth proportional to 12,736.17, 17,575.88 and 7,070.99 is: 9,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.17 : 17,575.88 = 7,070.99 : x
  2. Step 2: Convert to fraction form
    12,736.17/17,575.88 = 7,070.99/x
  3. Step 3: Cross multiply
    12,736.17x = 17,575.88 × 7,070.99
  4. Step 4: Simplify right side
    12,736.17x = 124,278,748.49
  5. Step 5: Solve for x
    x = 124,278,748.49/12,736.17
  6. Step 6: Final answer
    x = 9,757.94

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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.