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Finding the Fourth Proportional to 55,907.60, 83,861.40 and 18,467.60

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Solution

The fourth proportional to 55,907.60, 83,861.40 and 18,467.60 is: 27,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,907.60 : 83,861.40 = 18,467.60 : x
  2. Step 2: Convert to fraction form
    55,907.60/83,861.40 = 18,467.60/x
  3. Step 3: Cross multiply
    55,907.60x = 83,861.40 × 18,467.60
  4. Step 4: Simplify right side
    55,907.60x = 1,548,718,790.64
  5. Step 5: Solve for x
    x = 1,548,718,790.64/55,907.60
  6. Step 6: Final answer
    x = 27,701.40

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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.