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Finding the Fourth Proportional to 8,820.64, 12,175 and 5,093.92

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Solution

The fourth proportional to 8,820.64, 12,175 and 5,093.92 is: 7,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.64 : 12,175 = 5,093.92 : x
  2. Step 2: Convert to fraction form
    8,820.64/12,175 = 5,093.92/x
  3. Step 3: Cross multiply
    8,820.64x = 12,175 × 5,093.92
  4. Step 4: Simplify right side
    8,820.64x = 62,018,476
  5. Step 5: Solve for x
    x = 62,018,476/8,820.64
  6. Step 6: Final answer
    x = 7,031.06

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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.