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Finding the Fourth Proportional to 67,373.88, 92,980.20 and 38,702.51

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Solution

The fourth proportional to 67,373.88, 92,980.20 and 38,702.51 is: 53,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,373.88 : 92,980.20 = 38,702.51 : x
  2. Step 2: Convert to fraction form
    67,373.88/92,980.20 = 38,702.51/x
  3. Step 3: Cross multiply
    67,373.88x = 92,980.20 × 38,702.51
  4. Step 4: Simplify right side
    67,373.88x = 3,598,566,655.40
  5. Step 5: Solve for x
    x = 3,598,566,655.40/67,373.88
  6. Step 6: Final answer
    x = 53,411.90

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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.