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Finding the Fourth Proportional to 11,878.77, 16,392.95 and 6,573.68

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Solution

The fourth proportional to 11,878.77, 16,392.95 and 6,573.68 is: 9,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.77 : 16,392.95 = 6,573.68 : x
  2. Step 2: Convert to fraction form
    11,878.77/16,392.95 = 6,573.68/x
  3. Step 3: Cross multiply
    11,878.77x = 16,392.95 × 6,573.68
  4. Step 4: Simplify right side
    11,878.77x = 107,762,007.56
  5. Step 5: Solve for x
    x = 107,762,007.56/11,878.77
  6. Step 6: Final answer
    x = 9,071.82

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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.