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Finding the Fourth Proportional to 15,082.08, 20,822.94 and 9,706.92

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Solution

The fourth proportional to 15,082.08, 20,822.94 and 9,706.92 is: 13,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.08 : 20,822.94 = 9,706.92 : x
  2. Step 2: Convert to fraction form
    15,082.08/20,822.94 = 9,706.92/x
  3. Step 3: Cross multiply
    15,082.08x = 20,822.94 × 9,706.92
  4. Step 4: Simplify right side
    15,082.08x = 202,126,612.74
  5. Step 5: Solve for x
    x = 202,126,612.74/15,082.08
  6. Step 6: Final answer
    x = 13,401.77

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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.