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Finding the Fourth Proportional to 61,947.98, 85,485.48 and 35,089.95

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Solution

The fourth proportional to 61,947.98, 85,485.48 and 35,089.95 is: 48,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.98 : 85,485.48 = 35,089.95 : x
  2. Step 2: Convert to fraction form
    61,947.98/85,485.48 = 35,089.95/x
  3. Step 3: Cross multiply
    61,947.98x = 85,485.48 × 35,089.95
  4. Step 4: Simplify right side
    61,947.98x = 2,999,681,218.93
  5. Step 5: Solve for x
    x = 2,999,681,218.93/61,947.98
  6. Step 6: Final answer
    x = 48,422.58

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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.