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Finding the Fourth Proportional to 67,878.60, 93,671.04 and 37,663.28

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Solution

The fourth proportional to 67,878.60, 93,671.04 and 37,663.28 is: 51,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878.60 : 93,671.04 = 37,663.28 : x
  2. Step 2: Convert to fraction form
    67,878.60/93,671.04 = 37,663.28/x
  3. Step 3: Cross multiply
    67,878.60x = 93,671.04 × 37,663.28
  4. Step 4: Simplify right side
    67,878.60x = 3,527,958,607.41
  5. Step 5: Solve for x
    x = 3,527,958,607.41/67,878.60
  6. Step 6: Final answer
    x = 51,974.53

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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.