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Finding the Fourth Proportional to 71,549.48, 107,326.55 and 35,991.43

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Solution

The fourth proportional to 71,549.48, 107,326.55 and 35,991.43 is: 53,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,549.48 : 107,326.55 = 35,991.43 : x
  2. Step 2: Convert to fraction form
    71,549.48/107,326.55 = 35,991.43/x
  3. Step 3: Cross multiply
    71,549.48x = 107,326.55 × 35,991.43
  4. Step 4: Simplify right side
    71,549.48x = 3,862,835,833.13
  5. Step 5: Solve for x
    x = 3,862,835,833.13/71,549.48
  6. Step 6: Final answer
    x = 53,988.31

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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.