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Finding the Fourth Proportional to 56,601.80, 84,848.70 and 21,053.60

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Solution

The fourth proportional to 56,601.80, 84,848.70 and 21,053.60 is: 31,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,601.80 : 84,848.70 = 21,053.60 : x
  2. Step 2: Convert to fraction form
    56,601.80/84,848.70 = 21,053.60/x
  3. Step 3: Cross multiply
    56,601.80x = 84,848.70 × 21,053.60
  4. Step 4: Simplify right side
    56,601.80x = 1,786,370,590.32
  5. Step 5: Solve for x
    x = 1,786,370,590.32/56,601.80
  6. Step 6: Final answer
    x = 31,560.31

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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.