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Finding the Fourth Proportional to 55,693.60, 83,540.20 and 13,573.20

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Solution

The fourth proportional to 55,693.60, 83,540.20 and 13,573.20 is: 20,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,693.60 : 83,540.20 = 13,573.20 : x
  2. Step 2: Convert to fraction form
    55,693.60/83,540.20 = 13,573.20/x
  3. Step 3: Cross multiply
    55,693.60x = 83,540.20 × 13,573.20
  4. Step 4: Simplify right side
    55,693.60x = 1,133,907,842.64
  5. Step 5: Solve for x
    x = 1,133,907,842.64/55,693.60
  6. Step 6: Final answer
    x = 20,359.75

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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.