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Finding the Fourth Proportional to 55,458.81, 83,259.70 and 47,611.73

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Solution

The fourth proportional to 55,458.81, 83,259.70 and 47,611.73 is: 71,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,458.81 : 83,259.70 = 47,611.73 : x
  2. Step 2: Convert to fraction form
    55,458.81/83,259.70 = 47,611.73/x
  3. Step 3: Cross multiply
    55,458.81x = 83,259.70 × 47,611.73
  4. Step 4: Simplify right side
    55,458.81x = 3,964,138,445.40
  5. Step 5: Solve for x
    x = 3,964,138,445.40/55,458.81
  6. Step 6: Final answer
    x = 71,478.97

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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.