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Finding the Fourth Proportional to 12,632.13, 18,926.62 and 7,082.01

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Solution

The fourth proportional to 12,632.13, 18,926.62 and 7,082.01 is: 10,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.13 : 18,926.62 = 7,082.01 : x
  2. Step 2: Convert to fraction form
    12,632.13/18,926.62 = 7,082.01/x
  3. Step 3: Cross multiply
    12,632.13x = 18,926.62 × 7,082.01
  4. Step 4: Simplify right side
    12,632.13x = 134,038,512.11
  5. Step 5: Solve for x
    x = 134,038,512.11/12,632.13
  6. Step 6: Final answer
    x = 10,610.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.