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Finding the Fourth Proportional to 72,537.99, 100,077.89 and 47,076.24

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Solution

The fourth proportional to 72,537.99, 100,077.89 and 47,076.24 is: 64,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,537.99 : 100,077.89 = 47,076.24 : x
  2. Step 2: Convert to fraction form
    72,537.99/100,077.89 = 47,076.24/x
  3. Step 3: Cross multiply
    72,537.99x = 100,077.89 × 47,076.24
  4. Step 4: Simplify right side
    72,537.99x = 4,711,290,768.33
  5. Step 5: Solve for x
    x = 4,711,290,768.33/72,537.99
  6. Step 6: Final answer
    x = 64,949.29

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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.