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Finding the Fourth Proportional to 66,308.17, 99,461.28 and 16,388.27

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Solution

The fourth proportional to 66,308.17, 99,461.28 and 16,388.27 is: 24,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.17 : 99,461.28 = 16,388.27 : x
  2. Step 2: Convert to fraction form
    66,308.17/99,461.28 = 16,388.27/x
  3. Step 3: Cross multiply
    66,308.17x = 99,461.28 × 16,388.27
  4. Step 4: Simplify right side
    66,308.17x = 1,629,998,580.32
  5. Step 5: Solve for x
    x = 1,629,998,580.32/66,308.17
  6. Step 6: Final answer
    x = 24,582.17

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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.