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Finding the Fourth Proportional to 11,760.68, 17,640.54 and 4,364.97

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Solution

The fourth proportional to 11,760.68, 17,640.54 and 4,364.97 is: 6,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.68 : 17,640.54 = 4,364.97 : x
  2. Step 2: Convert to fraction form
    11,760.68/17,640.54 = 4,364.97/x
  3. Step 3: Cross multiply
    11,760.68x = 17,640.54 × 4,364.97
  4. Step 4: Simplify right side
    11,760.68x = 77,000,427.88
  5. Step 5: Solve for x
    x = 77,000,427.88/11,760.68
  6. Step 6: Final answer
    x = 6,547.28

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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.