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Finding the Fourth Proportional to 12,673.65, 17,490.54 and 7,008.29

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Solution

The fourth proportional to 12,673.65, 17,490.54 and 7,008.29 is: 9,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.65 : 17,490.54 = 7,008.29 : x
  2. Step 2: Convert to fraction form
    12,673.65/17,490.54 = 7,008.29/x
  3. Step 3: Cross multiply
    12,673.65x = 17,490.54 × 7,008.29
  4. Step 4: Simplify right side
    12,673.65x = 122,578,780.99
  5. Step 5: Solve for x
    x = 122,578,780.99/12,673.65
  6. Step 6: Final answer
    x = 9,671.94

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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.