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Finding the Fourth Proportional to 18,596.84, 25,663.17 and 10,638.54

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Solution

The fourth proportional to 18,596.84, 25,663.17 and 10,638.54 is: 14,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.84 : 25,663.17 = 10,638.54 : x
  2. Step 2: Convert to fraction form
    18,596.84/25,663.17 = 10,638.54/x
  3. Step 3: Cross multiply
    18,596.84x = 25,663.17 × 10,638.54
  4. Step 4: Simplify right side
    18,596.84x = 273,018,700.47
  5. Step 5: Solve for x
    x = 273,018,700.47/18,596.84
  6. Step 6: Final answer
    x = 14,680.92

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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.