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Finding the Fourth Proportional to 33,205.60, 49,808.40 and 12,426.40

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Solution

The fourth proportional to 33,205.60, 49,808.40 and 12,426.40 is: 18,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,205.60 : 49,808.40 = 12,426.40 : x
  2. Step 2: Convert to fraction form
    33,205.60/49,808.40 = 12,426.40/x
  3. Step 3: Cross multiply
    33,205.60x = 49,808.40 × 12,426.40
  4. Step 4: Simplify right side
    33,205.60x = 618,939,101.76
  5. Step 5: Solve for x
    x = 618,939,101.76/33,205.60
  6. Step 6: Final answer
    x = 18,639.60

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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.