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Finding the Fourth Proportional to 18,473.74, 27,710.88 and 4,622.74

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Solution

The fourth proportional to 18,473.74, 27,710.88 and 4,622.74 is: 6,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.74 : 27,710.88 = 4,622.74 : x
  2. Step 2: Convert to fraction form
    18,473.74/27,710.88 = 4,622.74/x
  3. Step 3: Cross multiply
    18,473.74x = 27,710.88 × 4,622.74
  4. Step 4: Simplify right side
    18,473.74x = 128,100,193.41
  5. Step 5: Solve for x
    x = 128,100,193.41/18,473.74
  6. Step 6: Final answer
    x = 6,934.18

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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.