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Finding the Fourth Proportional to 29,315.47, 43,973.21 and 8,255.51

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Solution

The fourth proportional to 29,315.47, 43,973.21 and 8,255.51 is: 12,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.47 : 43,973.21 = 8,255.51 : x
  2. Step 2: Convert to fraction form
    29,315.47/43,973.21 = 8,255.51/x
  3. Step 3: Cross multiply
    29,315.47x = 43,973.21 × 8,255.51
  4. Step 4: Simplify right side
    29,315.47x = 363,021,274.89
  5. Step 5: Solve for x
    x = 363,021,274.89/29,315.47
  6. Step 6: Final answer
    x = 12,383.27

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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.