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Finding the Fourth Proportional to 36,477.78, 50,339.32 and 19,710.78

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Solution

The fourth proportional to 36,477.78, 50,339.32 and 19,710.78 is: 27,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,477.78 : 50,339.32 = 19,710.78 : x
  2. Step 2: Convert to fraction form
    36,477.78/50,339.32 = 19,710.78/x
  3. Step 3: Cross multiply
    36,477.78x = 50,339.32 × 19,710.78
  4. Step 4: Simplify right side
    36,477.78x = 992,227,261.87
  5. Step 5: Solve for x
    x = 992,227,261.87/36,477.78
  6. Step 6: Final answer
    x = 27,200.87

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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.