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Finding the Fourth Proportional to 71,891.19, 99,210.23 and 41,694.42

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Solution

The fourth proportional to 71,891.19, 99,210.23 and 41,694.42 is: 57,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,891.19 : 99,210.23 = 41,694.42 : x
  2. Step 2: Convert to fraction form
    71,891.19/99,210.23 = 41,694.42/x
  3. Step 3: Cross multiply
    71,891.19x = 99,210.23 × 41,694.42
  4. Step 4: Simplify right side
    71,891.19x = 4,136,512,994.31
  5. Step 5: Solve for x
    x = 4,136,512,994.31/71,891.19
  6. Step 6: Final answer
    x = 57,538.52

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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.