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Finding the Fourth Proportional to 12,082.50, 16,668.99 and 7,365.06

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Solution

The fourth proportional to 12,082.50, 16,668.99 and 7,365.06 is: 10,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.50 : 16,668.99 = 7,365.06 : x
  2. Step 2: Convert to fraction form
    12,082.50/16,668.99 = 7,365.06/x
  3. Step 3: Cross multiply
    12,082.50x = 16,668.99 × 7,365.06
  4. Step 4: Simplify right side
    12,082.50x = 122,768,111.49
  5. Step 5: Solve for x
    x = 122,768,111.49/12,082.50
  6. Step 6: Final answer
    x = 10,160.82

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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.