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Finding the Fourth Proportional to 18,628.41, 27,955.17 and 6,941.64

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Solution

The fourth proportional to 18,628.41, 27,955.17 and 6,941.64 is: 10,417.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.41 : 27,955.17 = 6,941.64 : x
  2. Step 2: Convert to fraction form
    18,628.41/27,955.17 = 6,941.64/x
  3. Step 3: Cross multiply
    18,628.41x = 27,955.17 × 6,941.64
  4. Step 4: Simplify right side
    18,628.41x = 194,054,726.28
  5. Step 5: Solve for x
    x = 194,054,726.28/18,628.41
  6. Step 6: Final answer
    x = 10,417.14

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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.