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Finding the Fourth Proportional to 66,903.96, 100,362.90 and 22,535.64

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Solution

The fourth proportional to 66,903.96, 100,362.90 and 22,535.64 is: 33,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.96 : 100,362.90 = 22,535.64 : x
  2. Step 2: Convert to fraction form
    66,903.96/100,362.90 = 22,535.64/x
  3. Step 3: Cross multiply
    66,903.96x = 100,362.90 × 22,535.64
  4. Step 4: Simplify right side
    66,903.96x = 2,261,742,183.76
  5. Step 5: Solve for x
    x = 2,261,742,183.76/66,903.96
  6. Step 6: Final answer
    x = 33,805.80

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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.