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Finding the Fourth Proportional to 55,787.16, 83,693.90 and 18,347.34

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Solution

The fourth proportional to 55,787.16, 83,693.90 and 18,347.34 is: 27,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,787.16 : 83,693.90 = 18,347.34 : x
  2. Step 2: Convert to fraction form
    55,787.16/83,693.90 = 18,347.34/x
  3. Step 3: Cross multiply
    55,787.16x = 83,693.90 × 18,347.34
  4. Step 4: Simplify right side
    55,787.16x = 1,535,560,439.23
  5. Step 5: Solve for x
    x = 1,535,560,439.23/55,787.16
  6. Step 6: Final answer
    x = 27,525.34

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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.