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Finding the Fourth Proportional to 56,493.58, 84,688.06 and 20,935.10

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Solution

The fourth proportional to 56,493.58, 84,688.06 and 20,935.10 is: 31,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,493.58 : 84,688.06 = 20,935.10 : x
  2. Step 2: Convert to fraction form
    56,493.58/84,688.06 = 20,935.10/x
  3. Step 3: Cross multiply
    56,493.58x = 84,688.06 × 20,935.10
  4. Step 4: Simplify right side
    56,493.58x = 1,772,953,004.91
  5. Step 5: Solve for x
    x = 1,772,953,004.91/56,493.58
  6. Step 6: Final answer
    x = 31,383.27

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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.