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Finding the Fourth Proportional to 8,497.71, 11,726.52 and 4,721.12

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Solution

The fourth proportional to 8,497.71, 11,726.52 and 4,721.12 is: 6,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497.71 : 11,726.52 = 4,721.12 : x
  2. Step 2: Convert to fraction form
    8,497.71/11,726.52 = 4,721.12/x
  3. Step 3: Cross multiply
    8,497.71x = 11,726.52 × 4,721.12
  4. Step 4: Simplify right side
    8,497.71x = 55,362,308.10
  5. Step 5: Solve for x
    x = 55,362,308.10/8,497.71
  6. Step 6: Final answer
    x = 6,514.97

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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.