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Finding the Fourth Proportional to 35,521.69, 49,019.62 and 19,605.80

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Solution

The fourth proportional to 35,521.69, 49,019.62 and 19,605.80 is: 27,055.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,521.69 : 49,019.62 = 19,605.80 : x
  2. Step 2: Convert to fraction form
    35,521.69/49,019.62 = 19,605.80/x
  3. Step 3: Cross multiply
    35,521.69x = 49,019.62 × 19,605.80
  4. Step 4: Simplify right side
    35,521.69x = 961,068,672.79
  5. Step 5: Solve for x
    x = 961,068,672.79/35,521.69
  6. Step 6: Final answer
    x = 27,055.83

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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.