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Finding the Fourth Proportional to 55,963.60, 83,889.30 and 25,998.90

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Solution

The fourth proportional to 55,963.60, 83,889.30 and 25,998.90 is: 38,972.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.60 : 83,889.30 = 25,998.90 : x
  2. Step 2: Convert to fraction form
    55,963.60/83,889.30 = 25,998.90/x
  3. Step 3: Cross multiply
    55,963.60x = 83,889.30 × 25,998.90
  4. Step 4: Simplify right side
    55,963.60x = 2,181,029,521.77
  5. Step 5: Solve for x
    x = 2,181,029,521.77/55,963.60
  6. Step 6: Final answer
    x = 38,972.29

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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.