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Finding the Fourth Proportional to 18,946.84, 26,146.84 and 10,449.27

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Solution

The fourth proportional to 18,946.84, 26,146.84 and 10,449.27 is: 14,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.84 : 26,146.84 = 10,449.27 : x
  2. Step 2: Convert to fraction form
    18,946.84/26,146.84 = 10,449.27/x
  3. Step 3: Cross multiply
    18,946.84x = 26,146.84 × 10,449.27
  4. Step 4: Simplify right side
    18,946.84x = 273,215,390.81
  5. Step 5: Solve for x
    x = 273,215,390.81/18,946.84
  6. Step 6: Final answer
    x = 14,420.10

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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.