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Finding the Fourth Proportional to 11,392.50, 17,088.75 and 3,184.50

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Solution

The fourth proportional to 11,392.50, 17,088.75 and 3,184.50 is: 4,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.50 : 17,088.75 = 3,184.50 : x
  2. Step 2: Convert to fraction form
    11,392.50/17,088.75 = 3,184.50/x
  3. Step 3: Cross multiply
    11,392.50x = 17,088.75 × 3,184.50
  4. Step 4: Simplify right side
    11,392.50x = 54,419,124.38
  5. Step 5: Solve for x
    x = 54,419,124.38/11,392.50
  6. Step 6: Final answer
    x = 4,776.75

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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.