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Finding the Fourth Proportional to 8,497.77, 11,726.91 and 4,721.28

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Solution

The fourth proportional to 8,497.77, 11,726.91 and 4,721.28 is: 6,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497.77 : 11,726.91 = 4,721.28 : x
  2. Step 2: Convert to fraction form
    8,497.77/11,726.91 = 4,721.28/x
  3. Step 3: Cross multiply
    8,497.77x = 11,726.91 × 4,721.28
  4. Step 4: Simplify right side
    8,497.77x = 55,366,002.04
  5. Step 5: Solve for x
    x = 55,366,002.04/8,497.77
  6. Step 6: Final answer
    x = 6,515.36

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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.