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Finding the Fourth Proportional to 12,482.90, 17,224.44 and 7,176.68

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Solution

The fourth proportional to 12,482.90, 17,224.44 and 7,176.68 is: 9,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.90 : 17,224.44 = 7,176.68 : x
  2. Step 2: Convert to fraction form
    12,482.90/17,224.44 = 7,176.68/x
  3. Step 3: Cross multiply
    12,482.90x = 17,224.44 × 7,176.68
  4. Step 4: Simplify right side
    12,482.90x = 123,614,294.06
  5. Step 5: Solve for x
    x = 123,614,294.06/12,482.90
  6. Step 6: Final answer
    x = 9,902.69

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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.