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Finding the Fourth Proportional to 64,424.52, 88,905.62 and 36,130.12

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Solution

The fourth proportional to 64,424.52, 88,905.62 and 36,130.12 is: 49,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424.52 : 88,905.62 = 36,130.12 : x
  2. Step 2: Convert to fraction form
    64,424.52/88,905.62 = 36,130.12/x
  3. Step 3: Cross multiply
    64,424.52x = 88,905.62 × 36,130.12
  4. Step 4: Simplify right side
    64,424.52x = 3,212,170,719.27
  5. Step 5: Solve for x
    x = 3,212,170,719.27/64,424.52
  6. Step 6: Final answer
    x = 49,859.44

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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.