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Finding the Fourth Proportional to 83,832.60, 125,748.94 and 21,503.12

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Solution

The fourth proportional to 83,832.60, 125,748.94 and 21,503.12 is: 32,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,832.60 : 125,748.94 = 21,503.12 : x
  2. Step 2: Convert to fraction form
    83,832.60/125,748.94 = 21,503.12/x
  3. Step 3: Cross multiply
    83,832.60x = 125,748.94 × 21,503.12
  4. Step 4: Simplify right side
    83,832.60x = 2,703,994,546.69
  5. Step 5: Solve for x
    x = 2,703,994,546.69/83,832.60
  6. Step 6: Final answer
    x = 32,254.69

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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.