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Finding the Fourth Proportional to 68,118.86, 94,005.32 and 37,905.46

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Solution

The fourth proportional to 68,118.86, 94,005.32 and 37,905.46 is: 52,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.86 : 94,005.32 = 37,905.46 : x
  2. Step 2: Convert to fraction form
    68,118.86/94,005.32 = 37,905.46/x
  3. Step 3: Cross multiply
    68,118.86x = 94,005.32 × 37,905.46
  4. Step 4: Simplify right side
    68,118.86x = 3,563,314,897.05
  5. Step 5: Solve for x
    x = 3,563,314,897.05/68,118.86
  6. Step 6: Final answer
    x = 52,310.25

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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.