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Finding the Fourth Proportional to 11,484.28, 15,827.42 and 8,965.08

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Solution

The fourth proportional to 11,484.28, 15,827.42 and 8,965.08 is: 12,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,484.28 : 15,827.42 = 8,965.08 : x
  2. Step 2: Convert to fraction form
    11,484.28/15,827.42 = 8,965.08/x
  3. Step 3: Cross multiply
    11,484.28x = 15,827.42 × 8,965.08
  4. Step 4: Simplify right side
    11,484.28x = 141,894,086.49
  5. Step 5: Solve for x
    x = 141,894,086.49/11,484.28
  6. Step 6: Final answer
    x = 12,355.51

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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.