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Finding the Fourth Proportional to 12,763.03, 17,613.14 and 7,173.91

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Solution

The fourth proportional to 12,763.03, 17,613.14 and 7,173.91 is: 9,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.03 : 17,613.14 = 7,173.91 : x
  2. Step 2: Convert to fraction form
    12,763.03/17,613.14 = 7,173.91/x
  3. Step 3: Cross multiply
    12,763.03x = 17,613.14 × 7,173.91
  4. Step 4: Simplify right side
    12,763.03x = 126,355,081.18
  5. Step 5: Solve for x
    x = 126,355,081.18/12,763.03
  6. Step 6: Final answer
    x = 9,900.08

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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.