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Finding the Fourth Proportional to 18,474.50, 27,711.76 and 4,623.50

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Solution

The fourth proportional to 18,474.50, 27,711.76 and 4,623.50 is: 6,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.50 : 27,711.76 = 4,623.50 : x
  2. Step 2: Convert to fraction form
    18,474.50/27,711.76 = 4,623.50/x
  3. Step 3: Cross multiply
    18,474.50x = 27,711.76 × 4,623.50
  4. Step 4: Simplify right side
    18,474.50x = 128,125,322.36
  5. Step 5: Solve for x
    x = 128,125,322.36/18,474.50
  6. Step 6: Final answer
    x = 6,935.25

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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.