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Finding the Fourth Proportional to 65,828.96, 98,699.64 and 36,260.72

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Solution

The fourth proportional to 65,828.96, 98,699.64 and 36,260.72 is: 54,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,828.96 : 98,699.64 = 36,260.72 : x
  2. Step 2: Convert to fraction form
    65,828.96/98,699.64 = 36,260.72/x
  3. Step 3: Cross multiply
    65,828.96x = 98,699.64 × 36,260.72
  4. Step 4: Simplify right side
    65,828.96x = 3,578,920,010.14
  5. Step 5: Solve for x
    x = 3,578,920,010.14/65,828.96
  6. Step 6: Final answer
    x = 54,366.95

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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.