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Finding the Fourth Proportional to 64,430.96, 96,671.04 and 36,382.68

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Solution

The fourth proportional to 64,430.96, 96,671.04 and 36,382.68 is: 54,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.96 : 96,671.04 = 36,382.68 : x
  2. Step 2: Convert to fraction form
    64,430.96/96,671.04 = 36,382.68/x
  3. Step 3: Cross multiply
    64,430.96x = 96,671.04 × 36,382.68
  4. Step 4: Simplify right side
    64,430.96x = 3,517,151,513.59
  5. Step 5: Solve for x
    x = 3,517,151,513.59/64,430.96
  6. Step 6: Final answer
    x = 54,587.91

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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.