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Finding the Fourth Proportional to 65,607.92, 90,529.80 and 37,310.48

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Solution

The fourth proportional to 65,607.92, 90,529.80 and 37,310.48 is: 51,483.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,607.92 : 90,529.80 = 37,310.48 : x
  2. Step 2: Convert to fraction form
    65,607.92/90,529.80 = 37,310.48/x
  3. Step 3: Cross multiply
    65,607.92x = 90,529.80 × 37,310.48
  4. Step 4: Simplify right side
    65,607.92x = 3,377,710,292.30
  5. Step 5: Solve for x
    x = 3,377,710,292.30/65,607.92
  6. Step 6: Final answer
    x = 51,483.27

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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.