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Finding the Fourth Proportional to 11,955.16, 16,497.88 and 6,649.32

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Solution

The fourth proportional to 11,955.16, 16,497.88 and 6,649.32 is: 9,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.16 : 16,497.88 = 6,649.32 : x
  2. Step 2: Convert to fraction form
    11,955.16/16,497.88 = 6,649.32/x
  3. Step 3: Cross multiply
    11,955.16x = 16,497.88 × 6,649.32
  4. Step 4: Simplify right side
    11,955.16x = 109,699,683.44
  5. Step 5: Solve for x
    x = 109,699,683.44/11,955.16
  6. Step 6: Final answer
    x = 9,175.93

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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.