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Finding the Fourth Proportional to 39,486.40, 59,200.80 and 16,100.80

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Solution

The fourth proportional to 39,486.40, 59,200.80 and 16,100.80 is: 24,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,486.40 : 59,200.80 = 16,100.80 : x
  2. Step 2: Convert to fraction form
    39,486.40/59,200.80 = 16,100.80/x
  3. Step 3: Cross multiply
    39,486.40x = 59,200.80 × 16,100.80
  4. Step 4: Simplify right side
    39,486.40x = 953,180,240.64
  5. Step 5: Solve for x
    x = 953,180,240.64/39,486.40
  6. Step 6: Final answer
    x = 24,139.46

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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.