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Finding the Fourth Proportional to 19,322.29, 28,994.20 and 10,437.44

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Solution

The fourth proportional to 19,322.29, 28,994.20 and 10,437.44 is: 15,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.29 : 28,994.20 = 10,437.44 : x
  2. Step 2: Convert to fraction form
    19,322.29/28,994.20 = 10,437.44/x
  3. Step 3: Cross multiply
    19,322.29x = 28,994.20 × 10,437.44
  4. Step 4: Simplify right side
    19,322.29x = 302,625,222.85
  5. Step 5: Solve for x
    x = 302,625,222.85/19,322.29
  6. Step 6: Final answer
    x = 15,661.97

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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.