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Finding the Fourth Proportional to 64,218.95, 88,619.97 and 35,539.82

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Solution

The fourth proportional to 64,218.95, 88,619.97 and 35,539.82 is: 49,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,218.95 : 88,619.97 = 35,539.82 : x
  2. Step 2: Convert to fraction form
    64,218.95/88,619.97 = 35,539.82/x
  3. Step 3: Cross multiply
    64,218.95x = 88,619.97 × 35,539.82
  4. Step 4: Simplify right side
    64,218.95x = 3,149,537,870.48
  5. Step 5: Solve for x
    x = 3,149,537,870.48/64,218.95
  6. Step 6: Final answer
    x = 49,043.75

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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.