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Finding the Fourth Proportional to 60,716.82, 91,109.79 and 39,950.10

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Solution

The fourth proportional to 60,716.82, 91,109.79 and 39,950.10 is: 59,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,716.82 : 91,109.79 = 39,950.10 : x
  2. Step 2: Convert to fraction form
    60,716.82/91,109.79 = 39,950.10/x
  3. Step 3: Cross multiply
    60,716.82x = 91,109.79 × 39,950.10
  4. Step 4: Simplify right side
    60,716.82x = 3,639,845,221.48
  5. Step 5: Solve for x
    x = 3,639,845,221.48/60,716.82
  6. Step 6: Final answer
    x = 59,947.89

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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.