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Finding the Fourth Proportional to 68,740.33, 94,861.53 and 38,525.64

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Solution

The fourth proportional to 68,740.33, 94,861.53 and 38,525.64 is: 53,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,740.33 : 94,861.53 = 38,525.64 : x
  2. Step 2: Convert to fraction form
    68,740.33/94,861.53 = 38,525.64/x
  3. Step 3: Cross multiply
    68,740.33x = 94,861.53 × 38,525.64
  4. Step 4: Simplify right side
    68,740.33x = 3,654,601,349.19
  5. Step 5: Solve for x
    x = 3,654,601,349.19/68,740.33
  6. Step 6: Final answer
    x = 53,165.32

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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.