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Finding the Fourth Proportional to 39,896.80, 59,845.20 and 32,898.40

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Solution

The fourth proportional to 39,896.80, 59,845.20 and 32,898.40 is: 49,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,896.80 : 59,845.20 = 32,898.40 : x
  2. Step 2: Convert to fraction form
    39,896.80/59,845.20 = 32,898.40/x
  3. Step 3: Cross multiply
    39,896.80x = 59,845.20 × 32,898.40
  4. Step 4: Simplify right side
    39,896.80x = 1,968,811,327.68
  5. Step 5: Solve for x
    x = 1,968,811,327.68/39,896.80
  6. Step 6: Final answer
    x = 49,347.60

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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.