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Finding the Fourth Proportional to 67,210.26, 92,746.62 and 36,989.80

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Solution

The fourth proportional to 67,210.26, 92,746.62 and 36,989.80 is: 51,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,210.26 : 92,746.62 = 36,989.80 : x
  2. Step 2: Convert to fraction form
    67,210.26/92,746.62 = 36,989.80/x
  3. Step 3: Cross multiply
    67,210.26x = 92,746.62 × 36,989.80
  4. Step 4: Simplify right side
    67,210.26x = 3,430,678,924.48
  5. Step 5: Solve for x
    x = 3,430,678,924.48/67,210.26
  6. Step 6: Final answer
    x = 51,043.98

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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.