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Finding the Fourth Proportional to 16,090.60, 24,109.98 and 9,921.64

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Solution

The fourth proportional to 16,090.60, 24,109.98 and 9,921.64 is: 14,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,090.60 : 24,109.98 = 9,921.64 : x
  2. Step 2: Convert to fraction form
    16,090.60/24,109.98 = 9,921.64/x
  3. Step 3: Cross multiply
    16,090.60x = 24,109.98 × 9,921.64
  4. Step 4: Simplify right side
    16,090.60x = 239,210,541.97
  5. Step 5: Solve for x
    x = 239,210,541.97/16,090.60
  6. Step 6: Final answer
    x = 14,866.48

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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.