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Finding the Fourth Proportional to 34,507.47, 47,619.21 and 19,399.77

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Solution

The fourth proportional to 34,507.47, 47,619.21 and 19,399.77 is: 26,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,507.47 : 47,619.21 = 19,399.77 : x
  2. Step 2: Convert to fraction form
    34,507.47/47,619.21 = 19,399.77/x
  3. Step 3: Cross multiply
    34,507.47x = 47,619.21 × 19,399.77
  4. Step 4: Simplify right side
    34,507.47x = 923,801,721.58
  5. Step 5: Solve for x
    x = 923,801,721.58/34,507.47
  6. Step 6: Final answer
    x = 26,771.06

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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.