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Finding the Fourth Proportional to 28,894.66, 43,339.83 and 10,426.66

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Solution

The fourth proportional to 28,894.66, 43,339.83 and 10,426.66 is: 15,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.66 : 43,339.83 = 10,426.66 : x
  2. Step 2: Convert to fraction form
    28,894.66/43,339.83 = 10,426.66/x
  3. Step 3: Cross multiply
    28,894.66x = 43,339.83 × 10,426.66
  4. Step 4: Simplify right side
    28,894.66x = 451,889,671.87
  5. Step 5: Solve for x
    x = 451,889,671.87/28,894.66
  6. Step 6: Final answer
    x = 15,639.21

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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.