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Finding the Fourth Proportional to 16,602.64, 24,911.20 and 8,809.52

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Solution

The fourth proportional to 16,602.64, 24,911.20 and 8,809.52 is: 13,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,602.64 : 24,911.20 = 8,809.52 : x
  2. Step 2: Convert to fraction form
    16,602.64/24,911.20 = 8,809.52/x
  3. Step 3: Cross multiply
    16,602.64x = 24,911.20 × 8,809.52
  4. Step 4: Simplify right side
    16,602.64x = 219,455,714.62
  5. Step 5: Solve for x
    x = 219,455,714.62/16,602.64
  6. Step 6: Final answer
    x = 13,218.12

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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.