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Finding the Fourth Proportional to 71,525.09, 107,300.01 and 29,428.31

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Solution

The fourth proportional to 71,525.09, 107,300.01 and 29,428.31 is: 44,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,525.09 : 107,300.01 = 29,428.31 : x
  2. Step 2: Convert to fraction form
    71,525.09/107,300.01 = 29,428.31/x
  3. Step 3: Cross multiply
    71,525.09x = 107,300.01 × 29,428.31
  4. Step 4: Simplify right side
    71,525.09x = 3,157,657,957.28
  5. Step 5: Solve for x
    x = 3,157,657,957.28/71,525.09
  6. Step 6: Final answer
    x = 44,147.56

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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.