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Finding the Fourth Proportional to 55,685.79, 83,417.31 and 33,486.93

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Solution

The fourth proportional to 55,685.79, 83,417.31 and 33,486.93 is: 50,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.79 : 83,417.31 = 33,486.93 : x
  2. Step 2: Convert to fraction form
    55,685.79/83,417.31 = 33,486.93/x
  3. Step 3: Cross multiply
    55,685.79x = 83,417.31 × 33,486.93
  4. Step 4: Simplify right side
    55,685.79x = 2,793,389,620.76
  5. Step 5: Solve for x
    x = 2,793,389,620.76/55,685.79
  6. Step 6: Final answer
    x = 50,163.42

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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.