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Finding the Fourth Proportional to 51,574.62, 77,365.89 and 21,992.61

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Solution

The fourth proportional to 51,574.62, 77,365.89 and 21,992.61 is: 32,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,574.62 : 77,365.89 = 21,992.61 : x
  2. Step 2: Convert to fraction form
    51,574.62/77,365.89 = 21,992.61/x
  3. Step 3: Cross multiply
    51,574.62x = 77,365.89 × 21,992.61
  4. Step 4: Simplify right side
    51,574.62x = 1,701,477,846.07
  5. Step 5: Solve for x
    x = 1,701,477,846.07/51,574.62
  6. Step 6: Final answer
    x = 32,990.60

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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.