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Finding the Fourth Proportional to 41,655.60, 62,488.80 and 20,606.40

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Solution

The fourth proportional to 41,655.60, 62,488.80 and 20,606.40 is: 30,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,655.60 : 62,488.80 = 20,606.40 : x
  2. Step 2: Convert to fraction form
    41,655.60/62,488.80 = 20,606.40/x
  3. Step 3: Cross multiply
    41,655.60x = 62,488.80 × 20,606.40
  4. Step 4: Simplify right side
    41,655.60x = 1,287,669,208.32
  5. Step 5: Solve for x
    x = 1,287,669,208.32/41,655.60
  6. Step 6: Final answer
    x = 30,912.27

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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.