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Finding the Fourth Proportional to 43,166.80, 64,723.80 and 16,841.20

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Solution

The fourth proportional to 43,166.80, 64,723.80 and 16,841.20 is: 25,251.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,166.80 : 64,723.80 = 16,841.20 : x
  2. Step 2: Convert to fraction form
    43,166.80/64,723.80 = 16,841.20/x
  3. Step 3: Cross multiply
    43,166.80x = 64,723.80 × 16,841.20
  4. Step 4: Simplify right side
    43,166.80x = 1,090,026,460.56
  5. Step 5: Solve for x
    x = 1,090,026,460.56/43,166.80
  6. Step 6: Final answer
    x = 25,251.50

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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.