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Finding the Fourth Proportional to 12,668.29, 17,482.14 and 7,003.43

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Solution

The fourth proportional to 12,668.29, 17,482.14 and 7,003.43 is: 9,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.29 : 17,482.14 = 7,003.43 : x
  2. Step 2: Convert to fraction form
    12,668.29/17,482.14 = 7,003.43/x
  3. Step 3: Cross multiply
    12,668.29x = 17,482.14 × 7,003.43
  4. Step 4: Simplify right side
    12,668.29x = 122,434,943.74
  5. Step 5: Solve for x
    x = 122,434,943.74/12,668.29
  6. Step 6: Final answer
    x = 9,664.68

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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.