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Finding the Fourth Proportional to 18,425.72, 27,642.51 and 5,946.45

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Solution

The fourth proportional to 18,425.72, 27,642.51 and 5,946.45 is: 8,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.72 : 27,642.51 = 5,946.45 : x
  2. Step 2: Convert to fraction form
    18,425.72/27,642.51 = 5,946.45/x
  3. Step 3: Cross multiply
    18,425.72x = 27,642.51 × 5,946.45
  4. Step 4: Simplify right side
    18,425.72x = 164,374,803.59
  5. Step 5: Solve for x
    x = 164,374,803.59/18,425.72
  6. Step 6: Final answer
    x = 8,920.95

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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.