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Finding the Fourth Proportional to 57,826.56, 86,706.12 and 28,214.40

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Solution

The fourth proportional to 57,826.56, 86,706.12 and 28,214.40 is: 42,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,826.56 : 86,706.12 = 28,214.40 : x
  2. Step 2: Convert to fraction form
    57,826.56/86,706.12 = 28,214.40/x
  3. Step 3: Cross multiply
    57,826.56x = 86,706.12 × 28,214.40
  4. Step 4: Simplify right side
    57,826.56x = 2,446,361,152.13
  5. Step 5: Solve for x
    x = 2,446,361,152.13/57,826.56
  6. Step 6: Final answer
    x = 42,305.15

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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.