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Finding the Fourth Proportional to 56,643.36, 84,964.08 and 15,092.64

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Solution

The fourth proportional to 56,643.36, 84,964.08 and 15,092.64 is: 22,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,643.36 : 84,964.08 = 15,092.64 : x
  2. Step 2: Convert to fraction form
    56,643.36/84,964.08 = 15,092.64/x
  3. Step 3: Cross multiply
    56,643.36x = 84,964.08 × 15,092.64
  4. Step 4: Simplify right side
    56,643.36x = 1,282,332,272.37
  5. Step 5: Solve for x
    x = 1,282,332,272.37/56,643.36
  6. Step 6: Final answer
    x = 22,638.70

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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.