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Finding the Fourth Proportional to 54,397.80, 81,596.70 and 31,026.60

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Solution

The fourth proportional to 54,397.80, 81,596.70 and 31,026.60 is: 46,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,397.80 : 81,596.70 = 31,026.60 : x
  2. Step 2: Convert to fraction form
    54,397.80/81,596.70 = 31,026.60/x
  3. Step 3: Cross multiply
    54,397.80x = 81,596.70 × 31,026.60
  4. Step 4: Simplify right side
    54,397.80x = 2,531,668,172.22
  5. Step 5: Solve for x
    x = 2,531,668,172.22/54,397.80
  6. Step 6: Final answer
    x = 46,539.90

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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.