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Finding the Fourth Proportional to 51,999.80, 77,999.70 and 25,699.10

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Solution

The fourth proportional to 51,999.80, 77,999.70 and 25,699.10 is: 38,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,999.80 : 77,999.70 = 25,699.10 : x
  2. Step 2: Convert to fraction form
    51,999.80/77,999.70 = 25,699.10/x
  3. Step 3: Cross multiply
    51,999.80x = 77,999.70 × 25,699.10
  4. Step 4: Simplify right side
    51,999.80x = 2,004,522,090.27
  5. Step 5: Solve for x
    x = 2,004,522,090.27/51,999.80
  6. Step 6: Final answer
    x = 38,548.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.