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Finding the Fourth Proportional to 28,934.40, 43,369.20 and 16,460.40

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Solution

The fourth proportional to 28,934.40, 43,369.20 and 16,460.40 is: 24,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,934.40 : 43,369.20 = 16,460.40 : x
  2. Step 2: Convert to fraction form
    28,934.40/43,369.20 = 16,460.40/x
  3. Step 3: Cross multiply
    28,934.40x = 43,369.20 × 16,460.40
  4. Step 4: Simplify right side
    28,934.40x = 713,874,379.68
  5. Step 5: Solve for x
    x = 713,874,379.68/28,934.40
  6. Step 6: Final answer
    x = 24,672.17

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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.