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Finding the Fourth Proportional to 11,323.99, 16,992.87 and 7,158.25

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Solution

The fourth proportional to 11,323.99, 16,992.87 and 7,158.25 is: 10,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.99 : 16,992.87 = 7,158.25 : x
  2. Step 2: Convert to fraction form
    11,323.99/16,992.87 = 7,158.25/x
  3. Step 3: Cross multiply
    11,323.99x = 16,992.87 × 7,158.25
  4. Step 4: Simplify right side
    11,323.99x = 121,639,126.71
  5. Step 5: Solve for x
    x = 121,639,126.71/11,323.99
  6. Step 6: Final answer
    x = 10,741.72

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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.