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Finding the Fourth Proportional to 65,703.66, 90,671.14 and 37,409.36

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Solution

The fourth proportional to 65,703.66, 90,671.14 and 37,409.36 is: 51,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,703.66 : 90,671.14 = 37,409.36 : x
  2. Step 2: Convert to fraction form
    65,703.66/90,671.14 = 37,409.36/x
  3. Step 3: Cross multiply
    65,703.66x = 90,671.14 × 37,409.36
  4. Step 4: Simplify right side
    65,703.66x = 3,391,949,317.87
  5. Step 5: Solve for x
    x = 3,391,949,317.87/65,703.66
  6. Step 6: Final answer
    x = 51,624.97

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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.