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Finding the Fourth Proportional to 11,672.64, 17,508.98 and 4,747.16

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Solution

The fourth proportional to 11,672.64, 17,508.98 and 4,747.16 is: 7,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.64 : 17,508.98 = 4,747.16 : x
  2. Step 2: Convert to fraction form
    11,672.64/17,508.98 = 4,747.16/x
  3. Step 3: Cross multiply
    11,672.64x = 17,508.98 × 4,747.16
  4. Step 4: Simplify right side
    11,672.64x = 83,117,929.50
  5. Step 5: Solve for x
    x = 83,117,929.50/11,672.64
  6. Step 6: Final answer
    x = 7,120.75

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1.5x scale

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.