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Finding the Fourth Proportional to 8,511.68, 11,746.62 and 5,326.97

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Solution

The fourth proportional to 8,511.68, 11,746.62 and 5,326.97 is: 7,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.68 : 11,746.62 = 5,326.97 : x
  2. Step 2: Convert to fraction form
    8,511.68/11,746.62 = 5,326.97/x
  3. Step 3: Cross multiply
    8,511.68x = 11,746.62 × 5,326.97
  4. Step 4: Simplify right side
    8,511.68x = 62,573,833.61
  5. Step 5: Solve for x
    x = 62,573,833.61/8,511.68
  6. Step 6: Final answer
    x = 7,351.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.