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Finding the Fourth Proportional to 65,187.93, 89,959.38 and 35,379.93

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Solution

The fourth proportional to 65,187.93, 89,959.38 and 35,379.93 is: 48,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,187.93 : 89,959.38 = 35,379.93 : x
  2. Step 2: Convert to fraction form
    65,187.93/89,959.38 = 35,379.93/x
  3. Step 3: Cross multiply
    65,187.93x = 89,959.38 × 35,379.93
  4. Step 4: Simplify right side
    65,187.93x = 3,182,756,567.24
  5. Step 5: Solve for x
    x = 3,182,756,567.24/65,187.93
  6. Step 6: Final answer
    x = 48,824.32

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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.