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Finding the Fourth Proportional to 28,856.70, 43,252.65 and 14,811.30

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Solution

The fourth proportional to 28,856.70, 43,252.65 and 14,811.30 is: 22,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.70 : 43,252.65 = 14,811.30 : x
  2. Step 2: Convert to fraction form
    28,856.70/43,252.65 = 14,811.30/x
  3. Step 3: Cross multiply
    28,856.70x = 43,252.65 × 14,811.30
  4. Step 4: Simplify right side
    28,856.70x = 640,627,974.95
  5. Step 5: Solve for x
    x = 640,627,974.95/28,856.70
  6. Step 6: Final answer
    x = 22,200.32

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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.