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Finding the Fourth Proportional to 68,100.86, 93,980.44 and 37,888.99

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Solution

The fourth proportional to 68,100.86, 93,980.44 and 37,888.99 is: 52,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,100.86 : 93,980.44 = 37,888.99 : x
  2. Step 2: Convert to fraction form
    68,100.86/93,980.44 = 37,888.99/x
  3. Step 3: Cross multiply
    68,100.86x = 93,980.44 × 37,888.99
  4. Step 4: Simplify right side
    68,100.86x = 3,560,823,621.68
  5. Step 5: Solve for x
    x = 3,560,823,621.68/68,100.86
  6. Step 6: Final answer
    x = 52,287.50

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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.