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Finding the Fourth Proportional to 10,772.92, 14,863.98 and 6,579.64

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Solution

The fourth proportional to 10,772.92, 14,863.98 and 6,579.64 is: 9,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.92 : 14,863.98 = 6,579.64 : x
  2. Step 2: Convert to fraction form
    10,772.92/14,863.98 = 6,579.64/x
  3. Step 3: Cross multiply
    10,772.92x = 14,863.98 × 6,579.64
  4. Step 4: Simplify right side
    10,772.92x = 97,799,637.37
  5. Step 5: Solve for x
    x = 97,799,637.37/10,772.92
  6. Step 6: Final answer
    x = 9,078.28

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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.