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Finding the Fourth Proportional to 61,963.95, 85,510.34 and 35,108.28

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Solution

The fourth proportional to 61,963.95, 85,510.34 and 35,108.28 is: 48,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.95 : 85,510.34 = 35,108.28 : x
  2. Step 2: Convert to fraction form
    61,963.95/85,510.34 = 35,108.28/x
  3. Step 3: Cross multiply
    61,963.95x = 85,510.34 × 35,108.28
  4. Step 4: Simplify right side
    61,963.95x = 3,002,120,595.07
  5. Step 5: Solve for x
    x = 3,002,120,595.07/61,963.95
  6. Step 6: Final answer
    x = 48,449.47

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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.