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Finding the Fourth Proportional to 19,302.77, 28,934.33 and 10,964.99

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Solution

The fourth proportional to 19,302.77, 28,934.33 and 10,964.99 is: 16,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.77 : 28,934.33 = 10,964.99 : x
  2. Step 2: Convert to fraction form
    19,302.77/28,934.33 = 10,964.99/x
  3. Step 3: Cross multiply
    19,302.77x = 28,934.33 × 10,964.99
  4. Step 4: Simplify right side
    19,302.77x = 317,264,555.54
  5. Step 5: Solve for x
    x = 317,264,555.54/19,302.77
  6. Step 6: Final answer
    x = 16,436.22

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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.