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Finding the Fourth Proportional to 55,683.74, 76,854.74 and 33,035.31

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Solution

The fourth proportional to 55,683.74, 76,854.74 and 33,035.31 is: 45,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,683.74 : 76,854.74 = 33,035.31 : x
  2. Step 2: Convert to fraction form
    55,683.74/76,854.74 = 33,035.31/x
  3. Step 3: Cross multiply
    55,683.74x = 76,854.74 × 33,035.31
  4. Step 4: Simplify right side
    55,683.74x = 2,538,919,995.69
  5. Step 5: Solve for x
    x = 2,538,919,995.69/55,683.74
  6. Step 6: Final answer
    x = 45,595.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.