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Finding the Fourth Proportional to 15,066.29, 20,790.91 and 8,352.02

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Solution

The fourth proportional to 15,066.29, 20,790.91 and 8,352.02 is: 11,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.29 : 20,790.91 = 8,352.02 : x
  2. Step 2: Convert to fraction form
    15,066.29/20,790.91 = 8,352.02/x
  3. Step 3: Cross multiply
    15,066.29x = 20,790.91 × 8,352.02
  4. Step 4: Simplify right side
    15,066.29x = 173,646,096.14
  5. Step 5: Solve for x
    x = 173,646,096.14/15,066.29
  6. Step 6: Final answer
    x = 11,525.47

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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.