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Finding the Fourth Proportional to 77,562.80, 116,315.47 and 27,629.63

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Solution

The fourth proportional to 77,562.80, 116,315.47 and 27,629.63 is: 41,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,562.80 : 116,315.47 = 27,629.63 : x
  2. Step 2: Convert to fraction form
    77,562.80/116,315.47 = 27,629.63/x
  3. Step 3: Cross multiply
    77,562.80x = 116,315.47 × 27,629.63
  4. Step 4: Simplify right side
    77,562.80x = 3,213,753,621.09
  5. Step 5: Solve for x
    x = 3,213,753,621.09/77,562.80
  6. Step 6: Final answer
    x = 41,434.21

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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.