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Finding the Fourth Proportional to 11,588.16, 17,372.88 and 4,656

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Solution

The fourth proportional to 11,588.16, 17,372.88 and 4,656 is: 6,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,588.16 : 17,372.88 = 4,656 : x
  2. Step 2: Convert to fraction form
    11,588.16/17,372.88 = 4,656/x
  3. Step 3: Cross multiply
    11,588.16x = 17,372.88 × 4,656
  4. Step 4: Simplify right side
    11,588.16x = 80,888,129.28
  5. Step 5: Solve for x
    x = 80,888,129.28/11,588.16
  6. Step 6: Final answer
    x = 6,980.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.