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Finding the Fourth Proportional to 62,118.84, 85,702.15 and 40,621.17

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Solution

The fourth proportional to 62,118.84, 85,702.15 and 40,621.17 is: 56,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,118.84 : 85,702.15 = 40,621.17 : x
  2. Step 2: Convert to fraction form
    62,118.84/85,702.15 = 40,621.17/x
  3. Step 3: Cross multiply
    62,118.84x = 85,702.15 × 40,621.17
  4. Step 4: Simplify right side
    62,118.84x = 3,481,321,604.52
  5. Step 5: Solve for x
    x = 3,481,321,604.52/62,118.84
  6. Step 6: Final answer
    x = 56,042.93

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1.5x scale

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.