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Finding the Fourth Proportional to 43,053.76, 64,544.10 and 16,776.76

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Solution

The fourth proportional to 43,053.76, 64,544.10 and 16,776.76 is: 25,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,053.76 : 64,544.10 = 16,776.76 : x
  2. Step 2: Convert to fraction form
    43,053.76/64,544.10 = 16,776.76/x
  3. Step 3: Cross multiply
    43,053.76x = 64,544.10 × 16,776.76
  4. Step 4: Simplify right side
    43,053.76x = 1,082,840,875.12
  5. Step 5: Solve for x
    x = 1,082,840,875.12/43,053.76
  6. Step 6: Final answer
    x = 25,150.90

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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.