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Finding the Fourth Proportional to 64,755.01, 89,364.35 and 35,684.61

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Solution

The fourth proportional to 64,755.01, 89,364.35 and 35,684.61 is: 49,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,755.01 : 89,364.35 = 35,684.61 : x
  2. Step 2: Convert to fraction form
    64,755.01/89,364.35 = 35,684.61/x
  3. Step 3: Cross multiply
    64,755.01x = 89,364.35 × 35,684.61
  4. Step 4: Simplify right side
    64,755.01x = 3,188,931,977.65
  5. Step 5: Solve for x
    x = 3,188,931,977.65/64,755.01
  6. Step 6: Final answer
    x = 49,246.10

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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.