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Finding the Fourth Proportional to 45,994.76, 68,934.42 and 19,668.54

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Solution

The fourth proportional to 45,994.76, 68,934.42 and 19,668.54 is: 29,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,994.76 : 68,934.42 = 19,668.54 : x
  2. Step 2: Convert to fraction form
    45,994.76/68,934.42 = 19,668.54/x
  3. Step 3: Cross multiply
    45,994.76x = 68,934.42 × 19,668.54
  4. Step 4: Simplify right side
    45,994.76x = 1,355,839,397.15
  5. Step 5: Solve for x
    x = 1,355,839,397.15/45,994.76
  6. Step 6: Final answer
    x = 29,478.13

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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.