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Finding the Fourth Proportional to 39,510.99, 59,263.25 and 11,808.99

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Solution

The fourth proportional to 39,510.99, 59,263.25 and 11,808.99 is: 17,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,510.99 : 59,263.25 = 11,808.99 : x
  2. Step 2: Convert to fraction form
    39,510.99/59,263.25 = 11,808.99/x
  3. Step 3: Cross multiply
    39,510.99x = 59,263.25 × 11,808.99
  4. Step 4: Simplify right side
    39,510.99x = 699,839,067.57
  5. Step 5: Solve for x
    x = 699,839,067.57/39,510.99
  6. Step 6: Final answer
    x = 17,712.52

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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.